CTET Paper 1 - 12th Jan 2023 (English-Hindi-Sanskrit) (Previous Year Paper)

Development implies the overall change in shape, form, or structure, along with the function of the organ.

 Key Points

• Development can be characterized as a gradual and sequential process because it typically occurs in a predictable order and unfolds over time.
• This view of development suggests that new skills and abilities build on previously acquired ones in a step-by-step manner.
• For example, in cognitive development, children typically progress from simple to more complex thinking, and in physical development, children typically develop motor skills in a predictable sequence, such as rolling over before crawling before walking.

Thus, it is concluded that Development is a gradual and sequential process.

Development implies the overall change in shape, form, or structure, along with the function of the organ. Development is both quantitative and qualitative in nature. 

Key Points

• School is an environmental factor that can have a significant impact on development, particularly in areas such as cognitive, social, and emotional development.
• The school provides opportunities for learning and social interaction, which can influence academic achievement, language development, and the formation of friendships.
• The quality of education and the social climate of the school can also impact development, with positive environments promoting healthy development and negative environments hindering it.

Thus, it is concluded that School is an environmental factor influencing development.

Hint

• Genes and heredity are biological factors inherited from parents that influence development.
• Maturation refers to the natural process of growth and change that occurs with age and is influenced by both biological and environmental factors.

Socialization is a process of internalizing the norms, culture, values, and customs of society to be socially acceptable.

Key Points

• Family is the first and foremost agent of socialization for very young children. Infants and young children rely on their caregivers to provide for their basic needs and to learn about the world around them.
• Through interactions with parents and other family members, children learn about social norms, values, beliefs, and behaviors that are appropriate within their family and culture.
• As children grow and develop, other agents of socialization such as peers, school, and media become more influential. However, the family remains an important influence throughout an individual's life and can have a lasting impact on their socialization and development.

Thus, it is concluded that Family is typically the first and foremost agent of socialization of very young children.

Jean Piaget's theory of cognitive development proposes that children progress through four distinct stages of cognitive development, each characterized by a different way of thinking and understanding the world.

Key Points

• The Sensorimotor stage is the first stage of Piaget's theory and occurs from birth to approximately 2 years of age.
• During this stage, infants learn about the world primarily through their senses and motor actions.
• They begin by reflexively reacting to their environment and gradually develop intentional, goal-directed behaviors.
• Infants learn about cause and effect, object permanence, and the concept of self during this stage.
• At the beginning of the Sensorimotor stage, reflexes are the dominant way that infants learn about their environment.

Thus, it is concluded that according to Jean Piaget's theory of cognitive development, at Sensorimotor stage are reflexes dominant and the primary way of learning.

Jean Piaget's theory of cognitive development proposes that children progress through four distinct stages of cognitive development, each characterized by a different way of thinking and understanding the world.

Key Points

• Piaget believed that individuals actively construct their understanding of the world through a process of assimilation and accommodation.
• Assimilation involves incorporating new information into existing mental schemas or frameworks, while accommodation involves modifying existing schemas to fit new information.
• Accommodation is the process of changing existing mental schemas or creating new ones in response to new experiences or information.
• For example, a child who has only seen small dogs may initially think that all animals with four legs and fur are dogs. However, when the child encounters a cat, they must accommodate their existing schema for dogs to include the new information that cats are a different type of animal.

Hence, it is concluded that according to Jean Piaget, the process of changing the existing schemas to make sense of new information is called accommodation.

Hint

• Centration refers to the tendency to focus on only one aspect of a situation while disregarding other relevant aspects.
• Disequilibration refers to the state of cognitive discomfort or imbalance that arises when individuals encounter information that conflicts with their existing schemas, which can lead to the process of accommodation.
• Perception refers to the process of organizing and interpreting sensory information in order to make sense of the world around us.

Vygotsky was a Russian psychologist who proposed the sociocultural theory of cognitive development. According to Vygotsky, social interactions and cultural context play a crucial role in the development of cognitive processes.

Key Points

• The Zone of Proximal Development (ZPD) is a key concept in Vygotsky's theory.
• It refers to the difference between a learner's actual developmental level (what they can do on their own) and their potential developmental level (what they can do with guidance and support from a more knowledgeable other).
• The ZPD represents the range of tasks that a learner is capable of completing with support and guidance, but cannot complete independently.
• Vygotsky believed that learning occurs most effectively when learners are challenged to reach their potential developmental level with appropriate support from a more knowledgeable other.

Thus, it is concluded that The concept of "Zone of Proximal Development" (ZPD) has been proposed by Lev Vygotsky.

Vygotsky was a Russian psychologist who proposed the sociocultural theory of cognitive development.

Key Points

• According to Vygotsky, learning and development occur through social interactions and are mediated by language and culture.
• He believed that individuals learn by actively participating in culturally relevant activities and practices and that knowledge and skills are gradually internalized as individuals engage in these activities.
• Vygotsky believed that development involves a transformation of the way individuals participate in social activities.
• Initially, individuals rely heavily on external guidance and support from more knowledgeable others, but with time and practice, they gradually internalize this guidance and become increasingly self-directed in their thinking and behavior.
• This internalization process is the hallmark of cognitive development according to Vygotsky's theory.

Thus, it is concluded that Lev Vygotsky conceptualized development as the transformation of socially shared activities into internalized processes.

Kohlberg's theory of moral development is based on the idea that individuals progress through a series of stages as they develop their capacity for moral reasoning.

Key Points The six stages are divided into three levels: pre-conventional, conventional, and post-conventional.

• At the pre-conventional level, moral reasoning is based on self-interest and personal needs.
• ​Stage 1: Obedience and Punishment Orientation - In this stage, moral reasoning is based on avoiding punishment and seeking rewards.
• Stage 2: Individualism and Exchange - In this stage, moral reasoning is still based on self-interest, but children understand that other people have needs and desires too.
• At the conventional level, moral reasoning is based on social norms and expectations.
• Stage 3: Good Interpersonal Relationships - In this stage, moral reasoning is based on social norms and expectations.
• Stage 4: Maintaining Social Order - In this stage, moral reasoning is based on maintaining social order and following the law.
• At the post-conventional level, moral reasoning is based on individual rights and ethical principles. ​
• Stage 5: Social Contract and Individual Rights - In this stage, moral reasoning is based on individual rights and ethical principles.
• Stage 6: Universal Principles - In this final stage, moral reasoning is based on universal ethical principles. Individuals at this stage believe that there are certain principles, such as justice and fairness, that transcend social norms and expectations.

Hence, it is concluded that Lawrence Kohlberg proposed a sequence of 6 stages of moral reasoning among children and adults.

The constructivist approach to learning is based on the idea that learners actively construct their own knowledge and understanding of the world through experiences, interactions with others, and reflection.

Key Points

• The constructivist approach emphasizes active learning and critical thinking, and rote memorizing does not encourage students to engage with the material or to think deeply about it.
• Instead, constructivist approaches encourage problem-solving, guided discovery, and associative inferring, as these approaches promote active engagement with the material, and they help students to develop critical thinking skills.
• By actively constructing their own knowledge through problem-solving, guided discovery, and associative inferring, students can develop a deeper understanding of the material and retain the information for longer periods of time.

Hence, it is concluded that as per the constructivist approach, rote memorizing should not be promoted among students.

Intelligence Quotient (IQ) tests are standardized assessments that are used to measure an individual's cognitive abilities and potential. The tests are designed to measure various aspects of intelligence, such as verbal and mathematical reasoning skills, spatial ability, and memory.

Key Points

• IQ tests, like any other psychological measurement tool, have a margin of error or measurement error.
• This means that the scores obtained on IQ tests are subject to some degree of variability due to factors such as test administration conditions, individual fluctuations, and the inherent limitations of any measurement instrument.
• While IQ tests aim to measure intelligence, no test can be completely free from measurement error.

Thus, it is concluded that there is a certain error of measurement in IQ tests is correct in the context of Intelligence Quotient (IQ) tests.

Jean Piaget's theory of cognitive development proposes that children progress through four distinct stages of cognitive development, each characterized by a different way of thinking and understanding the world.

Key Points

• Jean Piaget believed that cognition (or thinking) influences language and that language is a tool that helps children to organize and classify their thoughts.
• In Piaget's view, children develop cognitive structures or mental schemas through their interactions with the environment and these schemas provide a framework for interpreting and understanding language.
• Lev Vygotsky believed that language and thought are closely intertwined and that language plays a central role in shaping thinking.
• Vygotsky believed that language allows individuals to communicate, collaborate, and share ideas, which in turn influences the development of thinking and problem-solving abilities.

Thus, it is concluded that while Jean Piaget believes cognition influences language Lev Vygotsky suggests that language directs thought.

Gender refers to the social and cultural roles, behaviors, and expectations associated with being male or female.

Key Points

• Gender bias refers to the unequal treatment or representation of individuals based on their gender.
• In this case, the over-representation of males in textbooks perpetuates gender bias and reinforces the idea that men are more important or valuable than women.
• This type of bias can have negative effects on individuals can limit opportunities and hinder progress toward gender equality.

Thus, it is concluded that the overrepresentation of males over females in textbooks is an example of gender bias.

Additional Information

• Gender equity refers to the fair distribution of resources and opportunities according to people's needs.
• Gender equality implies the absence of discrimination based on gender.
• Gender neutrality refers to the absence of gender distinctions or biases, but it does not address the existing imbalances and inequalities between genders.

The goal of teaching is to help students learn and acquire new knowledge, skills, and attitudes that will help them in their personal and professional lives.

Key Points

• Considering students' pace of learning while teaching means that a teacher should be aware of the different learning needs and abilities of their students and adjust their teaching strategies to match those needs.
• This can involve slowing down or speeding up the pace of instruction, providing additional explanations or examples, or offering extra support and resources for students who are struggling.

 Thus, it is concluded that a teacher should consider students' pace of learning while teaching.

 Hint

Ignoring students' pace of learning, ignoring individual differences in students' pace of learning, or only considering the pace of best-performing students can lead to students feeling left behind or not challenged enough, which can have a negative impact on their motivation and learning outcomes.

Assessment for learning involves teachers using a variety of assessment strategies and techniques to gather information about students' learning during the course of instruction.

• It focuses on the ongoing progress of students, rather than just their final achievement at the end of a unit or semester.

Key Points

• In order to utilize assessment for learning, a teacher should conduct assessments on the basis of the child's involvement with ongoing activities.
• This means that the teacher should observe the student's participation in classroom activities, note their progress and identify any areas of difficulty.
• The teacher can then provide timely feedback and support to help the student overcome any challenges and continue to progress in their learning.

Thus, it is concluded that option 3 is the correct answer.

Hint

• Conducting exams at the end of a session or making half-yearly exams compulsory for all may not be an effective way of utilizing assessment for learning.
• Using standardized tests alone may not provide an accurate picture of a student's progress or their individual learning needs.

Critical thinking is a process of analyzing, evaluating, and interpreting information to reach a conclusion or make a decision.

  Key Points

• Rote memorization involves simply memorizing information without understanding it, whereas critical thinking involves analyzing and evaluating information to form judgments and make decisions.
• When students are encouraged to memorize information without understanding it, they are not developing the skills necessary for critical thinking.
• Instead, teachers should encourage open-ended questions, reflection time, and the use of analogies, as these strategies can help students develop critical thinking skills.

Thus, it is concluded that Encouraging rote memorisation is likely to hinder critical thinking among students.

Inclusion is about creating a learning environment where every student feels valued, respected and has equal access to education.

• It is important to recognize that students from low socio-economic groups face a range of challenges that may impact their academic success, such as limited access to resources, poor nutrition, and a lack of support at home.

Key Points

• Creating a school culture that promotes a sense of belonging can help to break down barriers and provide a supportive environment for all students, regardless of their socio-economic background.
• This can include celebrating diversity, involving families and communities in the school, providing extra support for students who need it, and promoting a growth mindset that encourages students to believe in their ability to learn and succeed.

Thus, it is concluded that for successful inclusion of students belonging to low socio-economic groups, it is important to promote a school culture conducive to developing sense of belonging.

Learning disabilities are neurodevelopmental disorders that affect the ability of an individual to acquire, process, and retain information or skills.

Key Points

• Inserting an incorrect word, substituting and skipping words randomly, and mixing up the order of words in sentences are common signs of a learning disability, specifically in the area of reading or language processing.
• These difficulties can impact a student's ability to comprehend and communicate effectively and may require targeted interventions and accommodations in the classroom.

Thus, it is concluded that Learning disability is the correct answer.

Hint

• Autism is a developmental disorder that affects social interaction, communication, and behavior.
• Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder that affects attention, impulsivity, and hyperactivity.
• Hearing impairment is a sensory disability that affects the ability to hear and process auditory information.

Visual impairment refers to a significant limitation in one's ability to see, which cannot be fully corrected with glasses, contact lenses, or other types of vision correction.

Key Points

• For the successful inclusion of students with visual impairment, it is important to provide them with appropriate accommodations to help them access the same materials and information as their sighted peers.
• This can include providing electronically formatted lecture notes, audiotaped lectures, providing tactile models of graphic materials.

Thus, it is concluded that written descriptions and diagrams become a barrier.

Autism is a developmental disorder that affects social interaction, communication, and behavior. While individuals with autism may also experience difficulties in learning, their symptoms typically manifest in the form of challenges with social communication, sensory processing, and repetitive or restrictive behaviors.

Key Points

• Individuals with Autism Spectrum Disorder (ASD) often exhibit repetitive behaviors, such as repeating words or phrases, lining up objects in a particular order, or engaging in specific routines or rituals.
• They may also have difficulty with social interactions and communication and may exhibit sensory sensitivities or restricted interests.

Thus, it is concluded that Students with Autism typically demonstrate repetitive behavior.

Gifted learners are individuals who demonstrate exceptional abilities in one or more areas, such as intellectual ability, creative thinking, or artistic talent, beyond what is considered typical for their age group.

Key Points

• Students who are gifted typically display above-average ability in one or more areas such as academics, arts, music, sports, or leadership.
• They often learn at a faster pace and require less repetition than their peers.
• However, they may also face unique challenges such as boredom, underachievement, or difficulty fitting in with their peers.
• It is important for teachers to provide appropriate educational opportunities and support for gifted students to help them reach their full potential.

Thus, it is concluded that they have above-average ability is correct about students who are gifted.

Learning can be defined as the process of acquiring knowledge, skills, behaviors, or attitudes through experience, study, or instruction.

Key Points

• Assertion (A) is false. While lectures can be useful in certain situations, they are not the most effective teaching method for primary grades. Young children have shorter attention spans and benefit from more hands-on, interactive learning experiences.
• c Active learning, where students are actively engaged in the learning process, is often more effective and leads to better retention of information.

Thus, it is concluded that Both (A) and (R) are false.

The brain is capable of learning from real-world contexts, and therefore schools should emphasize constructive learning.

Key Points

• Constructive learning is an approach that emphasizes active engagement with real-world problems and challenges, allowing students to construct their own understanding and knowledge through inquiry, exploration, and experimentation.
• This approach is based on the idea that students learn best when they are actively engaged in the learning process and have opportunities to apply their learning in meaningful ways.
• By emphasizing constructive learning**, schools can help students develop critical thinking skills**, creativity, and problem-solving abilities that are essential for success in the modern world.

Thus, it is concluded that Option 1 is the correct answer.

Constructivism is a learning theory that emphasizes the active role of learners in constructing their own understanding and knowledge through meaningful experiences and interactions with the environment.

Key Points

• In a constructivist approach, learners are encouraged to be actively involved in the learning process, to ask questions, to explore and test their ideas, and to reflect on their learning.
• This approach emphasizes the importance of building on prior knowledge and experiences, as well as the relevance of the learning context to the learner.

Hence, it is concluded that Constructivism advocates production of new knowledge by learners.

Effective learning is a process that leads to long-term retention of knowledge and skills, and the ability to apply them in various contexts.

Key Points

• Engagement refers to the extent to which learners are motivated, interested, and invested in their learning. It is essential for effective learning as it helps learners to sustain their attention, effort, and focus, and to actively participate in the learning process.
• By providing multiple means of engagement, teachers can help to ensure that all learners are able to access and engage with the content in ways that are meaningful and relevant to them, regardless of their learning preferences, abilities, or backgrounds.
• This could include using a variety of teaching strategies, incorporating multimedia and technology, providing opportunities for peer collaboration and discussion, and offering choices and options for how learners can demonstrate their learning.

Thus, it is concluded that Providing multiple means of engagement is important to include all learners in class.

The strategy of dividing the problem into a number of intermediate subgoals and then figuring out means for solving each intermediate subgoal is referred to as means-ends analysis.

Key Points

• Means-ends analysis is a problem-solving strategy that involves breaking down a problem into smaller subgoals or intermediate steps, identifying the differences between the current state and the goal state, and determining the means or actions needed to reduce those differences or achieve each subgoal.
• This strategy allows individuals to focus their attention and efforts on a smaller set of more manageable problems, which can lead to a more efficient problem-solving process.

Thus, it is concluded that option 3 is the correct answer.

Additional Information

• Verbalization is the process of expressing thoughts or ideas in words or speech.
• Analogical thinking involves using analogies or comparisons between different situations or problems to identify similarities and apply solutions from one situation to another.
• Functional fixedness refers to a cognitive bias that limits an individual's ability to see an object or problem beyond its typical function or use.

It is essential for a teacher to understand the students' prior knowledge and understanding of a concept before teaching it.

Key Points

• Students come to the classroom with preconceptions, beliefs, and prior knowledge about the world around them, and they develop 'naive' theories or alternative conceptions based on their experiences. These 'naive' theories may not be scientifically accurate, but they form a basis for understanding and reasoning.
• A teacher should explore these 'naive' theories about concepts to be taught and build the lesson upon them, as it can help to bridge the gap between students' preconceptions and scientific understanding.
• By acknowledging students' prior knowledge, teachers can provide a more effective and engaging learning experience, which can lead to deeper understanding and advanced learning.

Thus, it is concluded that Both (A) and (R) are true and (R) is the correct explanation of (A).

Learning can be defined as the process of acquiring new knowledge, skills, behaviors, values, or attitudes through experience, study, or instruction.

Key Points

• (A) is true. Schools should promote pedagogies that don't emphasize on mere reproduction of materials learnt. Schools should promote pedagogies that encourage critical thinking, problem-solving, and creativity instead of rote learning and memorization.
• Emotions and cognition are interrelated and interconnected. Emotions can affect an individual's cognitive processes, such as attention, memory, and decision-making. Similarly, cognitive processes can influence an individual's emotional experience and expression.

Thus, it is concluded that (A) is true but (R) is false.

Intrinsic motivation refers to engaging in an activity because it is inherently enjoyable or interesting, rather than for external rewards or pressures.

Key Points

• Curiosity is a natural drive to explore and learn about the world, and pursuing research out of curiosity reflects an inherent interest in the topic itself.
• Studying to win a cash prize, performing a dance to get praise from peers, and participating in a race to come first are examples of extrinsic motivation because the primary motivator is an external reward or pressure.

Thus, it is concluded that Doing research on a topic out of curiosity is an example of intrinsic motivation.

Learning can be defined as the process of acquiring knowledge, skills, behaviors, or attitudes through experience, study, or instruction.

Key Points Learning gets influenced by 

• The classroom environment can significantly impact learning. A positive and supportive environment can encourage student engagement and motivation, while a negative or stressful environment can have the opposite effect.
• The availability of resources such as textbooks, technology, and learning materials can greatly impact the quality of learning. The more resources available, the better the learning experience can be for students.
• The pedagogy of the teacher can also play a crucial role in shaping the learning experience of students. Effective teaching strategies can help students understand and retain information better, while poor teaching methods can hinder learning.
• The readiness level of students is another important factor that influences learning. Students who are not ready for a particular lesson or topic may struggle to understand the material, whereas students who are prepared may find it easier to learn and retain information.

Thus, it is concluded that the correct option is 4) (i), (ii), (iii), and (iv).

A conducive teaching-learning environment is one that supports and enhances the learning experience for students. Creating such an environment requires a variety of factors, including effective classroom management, engaging teaching strategies, and appropriate use of technology and learning resources.

Key Points

• One critical aspect of a conducive learning environment is minimizing distractions.
• Distractions can significantly impact the learning environment and hinder the ability of students to focus and learn effectively.
• To minimize distractions, teachers can employ various strategies such as creating a quiet and orderly classroom environment, limiting visual stimuli, and setting clear rules and expectations for student behavior.
• By minimizing distractions, teachers can create a more conducive learning environment that enhances the learning experience and allows students to focus on their studies.

Thus, it is concluded that A conducive teaching-learning environment requires minimization of distractions.

Hint

• Maximizing threats can create a stressful environment that can negatively impact learning.
• Ignoring individual differences can prevent teachers from addressing the unique needs of each student, while rigid pedagogical practices can limit the flexibility and adaptability of the learning environment.

Concept used:

XL represents 40 in Roman numerals, LX represents 60, and LXXIV represents 74.

Calculations:

To find the value of (XL + LX - LXXIV), we first perform the addition and subtraction inside the parentheses, as follows:

XL + LX - LXXIV = 40 + 60 - 74

Simplifying the addition and subtraction gives:

= 100 - 74 = 26 = XXVI

Concept used:

Exponents, Multiplication and Division (from left to right), and finally Addition and Subtraction (from left to right), as follows:

0.04 × 0.35 ÷ 7 × 5 = (0.04 × 0.35 ÷ 7) × 5 =   0.02× 5 = 0.01

Hence, (0.04 × 0.35 ÷ 7 × 5) is equal to 0.01

Concept used:

A number is divisible by 9 if and only if the sum of its digits is divisible by 9.

A number is divisible by 3 if and only if the sum of its digits is divisible by 3

A number id divisible by 4 if and only if the last two digits of the number must be divisible by 4

.Calculations:

for 588

5 + 8 + 8 = 21 divisible by 3

Last 2 digit of the number is divisible by 4 i.e 88

But sum of the digits of the number is not divisible by 9 

Hence, 588 is the correct answer

Calculations:

To find what should be subtracted from the sum (186 + 215 + 46 - 170) to get 188, we need to perform the subtraction as follows:

(186 + 215 + 46 - 170) - x = 188

Simplifying the left side gives:

277 - x = 188

Subtracting 277 from both sides gives:

-x = 188 - 277

-x = -89

Multiplying both sides by -1 gives:

x = 89

Hence., we should subtract 89 from the sum (186 + 215 + 46 - 170) to get 188.

Calculation:

Total Toffees in 8 packets is 8 × 36 = 288

1/4 of toffees distributed among his friends = 288 × 1/4 = 72 

3/8 of toffees distributed among his teachers = 288 × 3/8 = 108

1/3 of toffees she saved for his brother = 288 × 1/3 = 96

Toffees left with her = total toffees - distributed toffees = 288 - (72 + 108 + 96)

Toffees left with her= 288 - 276 = 12

Mistake PointsHere, distribution is happening on total number of toffees and not on the remaining toffees

25310 and 26314 tens place digit that is 1 is not the smallest prime number 

Option no 1 and 2 are incorrect

Option 4: 46320 

Digit at ten thousands place is double of the digit at tens place is not followed here, 4 is not double of 3 

Hence, 45326 is the correct answer

Explanation:

At 3:30 on a clock, the hour hand points directly at the 3, and the minute hand points directly at the 6.

The angle between the hands can be found by calculating their positions' differences. The hour hand moves 360 degrees in 12 hours or 30 degrees per hour. Since it is half-past 3, or 3.5 hours past 12, the hour hand has moved 30 degrees per hour x 3.5 hours = 105 degrees.

The minute hand moves 360 degrees in 60 minutes or 6 degrees per minute. At 3:30, the minute hand has moved 6 degrees per minute x 30 minutes = 180 degrees.

To find the angle between the hands, we can subtract the smaller angle from the larger angle, or take the absolute value of their difference.

|105 degrees - 180 degrees| = |-75 degrees| = 75 degrees

Therefore, the angle formed by the hands of the clock at 3:30 is 75 degrees.

Calculation:

1. Length of diameter is half that of the radius of the circle is not Correct because Diameter of a Circle is Twice the radius of Circle

2. Every Chord is a diameter of the Circle is not Correct

3. Many radii can be drawn in a circle is correct because 

Therefore, in a circle, there are an infinite number of radii.

4) Circumference of a circle is three times its diameter is incorrect because circumference of circle  is 2πr = π times 2r = π times diameter not thrice times of diameter.

Hence, option 3 is correct.

Calculation:

3 cm, 4 cm, 5 cm is the sides of right angled triangle

6 cm, 6 cm, 6 cm is the sides of equilateral triangle 

12 cm, 15 cm, 7 cm follows the property of triangle sum of any two sides is greater than the third side

7 cm, 7 cm, 15 cm doesn't follows the property of triangle sum of any two sides is greater than the third side

Hence, the correct option is 3^rd.

Concept used:

1 foot = 30 cm

Calculations:

The height of Aashu is 5 feet 5 cm, which can be converted to just centimeters as:

5 feet x 30 cm/foot + 5 cm = 150 cm + 5 cm = 155 cm

Similarly, the height of Neetu is 4 feet 20 cm, which can be converted to just centimeters as:

4 feet x 30 cm/foot + 20 cm = 120 cm + 20 cm = 140 cm

To find how much taller Aashu is than Neetu, we need to subtract Neetu's height from Aashu's height:

155 cm - 140 cm = 15 cm

Therefore, Aashu is 15 cm taller than Neetu.

Given: 

Area of a rectangle = 252 cm2

Length of the rectangle = 18 cm

Concept used:

Area of rectangle = Length x Breadth

Perimeter of rectangle = 2 x (Length + Breadth)

Calculation:

Let the breadth of the rectangle be b cm. 

According to the question,

⇒ 252 = 18  x b

⇒ b = 252/18 = 14 cm

So, the breadth of the rectangle is 14 cm.

Now,

Perimeter of the rectangle

⇒ 2 x (18 + 14)

⇒ 2 x 32 = 64 cm

∴ The perimeter of the rectangle is 64 cm.

Concept used:

Volume of cuboid = Length x Breadth x Height

Calculations:

The volume of the cuboidal tin box is given by the formula:

Volume = Length x Breadth x Height

Substituting the given values, we get:

Volume = 32 cm x 20 cm x 25 cm Volume = 16,000 cm³

The volume of oil in the tin box is given by the formula:

The volume of oil = Length x Breadth x Height of oil

Substituting the given values, we get:

Volume of oil = 32 cm x 20 cm x 18 cm Volume of oil = 11,520 cm³

To find how much more oil can be poured in the tin box, we need to subtract the volume of oil already in the box from the total volume of the box:

Remaining volume = Total volume - Volume of oil Remaining volume = 16,000 cm³- 11,520 cm³ Remaining volume = 4,480 cm³

Therefore, 4,480 cm³ more oil can be poured into the tin box.

Concept used:

Two tier series:

It means two series are following some pattern in a single series 

Calculations:

4, 6, 3, 5, 2, 4, ______ This form a two tier series 

here odd term follows decreasing pattern as same the even term also follows the decreasing pattern 

4, 3, 2,.. hence, the next term will be 1

Hence, the correct answer is option 1

Concept:

Total angle in a pie chart = 360° 

Calculation: 

Angle of Mathematics = 63° 

So 63° = 105 marks

1° = 105/63 marks

Total Angle = 84 + 60 + 63 + 57 + 96 = 360° 

Total marks = 360° × 105/63 = 600°

Explanation:

Option 1 is incorrect

Mangoes are most liked by children is incorrect

Because Most Liked Fruit is Banana, 32 students likes Banana Only 16 Students Like Mango.

Option 2 is incorrect

Children liking oranges are one-third of the total children is incorrect 

Total Students is 100 and The Student who liked Orange is 24 which not 1/3^rd of 100 = 33.33 

Option 3 is correct

option 3 says: "Children liking either orange and banana are two times the children liking apples." 

 if we add up the number of children who like oranges and the number of children who like bananas, it should be twice the number of children who like apples. 

• The number of children who like oranges is 24.

• The number of children who like bananas is 32.

If we add these two numbers together, we get 24 + 32 = 56.

Now,

let's look at the number of children who like apples, which is 28. 

If we double this number (because the statement says it should be "two times the children liking apples"), we get 28 x 2 = 56.

This is the same number we got when we added together the number of children who like oranges and bananas!

So, this means that statement 3 is true.

It's like saying:

If I have 28 apples, and my friends have 24 oranges and 32 bananas combined, they have twice as many fruits as I do. That's what the statement is saying, and the numbers from the table prove it's correct!

Option 4 is incorrect.

Children liking apples are half of the total children is incorrect 

28 students is not half of 100 Since, 1/2 × 100 = 50 students

Mathematical games are a fun and effective way to engage with math and develop important mathematical thinking skills.

Key Points

• Mathematical games are governed by a set of rules and have a clear underlying structure:
• While mathematical games may encourage open-ended play, they are still governed by specific rules and have a clear structure.
• These rules and structures provide a framework for players to engage in strategic decision-making and problem-solving.
• By understanding the rules and structure of a game, players can begin to develop and refine their mathematical thinking skills.
• Mathematical games have specific mathematical cognitive objectives:
• Mathematical games are designed to help players develop specific math skills and concepts, such as spatial reasoning, logical thinking, algebraic thinking, or problem-solving skills.
• The games are structured to reinforce these skills through practice and repetition and are a fun and engaging way for players to build their mathematical knowledge and confidence.

​Hence, it can be concluded that only B and C options are correct.

The problem-solving method is a systematic approach to identify, analyze, and solve problems. This method involves several steps that can be followed in a sequential manner to increase the likelihood of finding an effective solution. The steps involved in the problem-solving method are:

1. Define or Identify the Problem: The first step is to define or identify the problem that needs to be solved.
2. Gather Information: Once the problem has been defined, the next step is to gather information about the problem.
3. Analyze the Problem: After the information has been gathered, the next step is to analyze the problem. This involves breaking down the problem into smaller, more manageable components, identifying the underlying causes of the problem, and exploring different possible solutions.
4. Develop Solutions: Based on the analysis of the problem, the next step is to develop potential solutions. This involves brainstorming ideas, evaluating different options, and selecting the most promising solutions.
5. Implement the Solution: Once a solution has been selected, the next step is to implement it. This involves putting the plan into action, monitoring progress, and making any necessary adjustments.
6. Evaluate the Results: After the solution has been implemented, the final step is to evaluate the results.

Hence, it can be concluded that Evaluate the Results: After the solution has been implemented, the final step is to evaluate the results to identify the problem.

Introducing the concept of measurement of length to primary grade students requires activities that are relatable and use familiar objects.

Key Points

Both options A and C are appropriate for this purpose:

• A. Using children's hand span to measure the length of different objects helps students understand the idea of using a standard unit of measurement (in this case, their hand span) to compare the lengths of different objects. It also makes the concept more tangible and relatable.
• C. Using pencils, pens, or other classroom objects to measure length is another hands-on approach. Students can use familiar objects as non-standard units of measurement to compare lengths. This helps them grasp the concept of measurement before introducing standard units like meters or centimeters.

Hint

• B. Use of a meter scale, might be too advanced for primary grade students as it introduces a standard measurement unit that may not be as relatable to their everyday experiences at that stage.

Hence, A and C are correct.

The following phrases represent various strategies for the addition of single-digit whole numbers.

• "Count all" refers to the strategy of counting all the individual objects or numbers in a problem to arrive at the solution. For example, to solve the problem 2 + 3, a student using the "count all" strategy would count all of the objects (2 and 3) to get a total of 5.
• "Count on" refers to the strategy of starting with the first number in a problem and then counting from there to arrive at the solution. For example, to solve the problem 2 + 3 using the "count on" strategy, a student would start with the first number (2) and then count on three more times to get a total of 5.
• "Make a ten" refers to the strategy of finding two numbers that can be added together to make a multiple of ten, and then using that multiple of ten to make the addition problem easier to solve.

These strategies can be useful for students who are just beginning to learn addition, as they provide different ways of thinking about and solving addition problems. By practising these strategies, students can develop their number sense and fluency in basic arithmetic.

Hence, it can be concluded that option 1 is the correct answer.

By introducing the concept of numbers as a description of a set of objects, the primary-grade mathematics teacher has focused on the cardinal aspect of numbers.

Key Points

• Cardinal numbers answer the question "how many?" and describe the size of a set.
• In the given scenario, the teacher is using sets of objects (2 pens, 3 fruits, etc.) to teach students about the quantity or size of those sets.
• This aligns with the concept of cardinal numbers, which focus on counting and quantifying objects in a set.

Hence, it can be concluded that cardinal aspects of numbers is the correct option.

Key Points

• One-to-one correspondence: This concept refers to the process of matching one object from one set to one object from another set, ensuring that each object is paired with only one other object.
• In the context of counting objects, one-to-one correspondence means that when a child counts, they should touch or point to each object once and only once, without skipping any or counting any object more than once.
• In the given scenario, if a child is counting some objects twice, it indicates a lack of understanding of one-to-one correspondence. Strengthening this concept will help the child count accurately by ensuring that each object is counted only once, eliminating the problem of overcounting.

Hence, it can be concluded that One to one correspondence pre-number concept needs to be strengthened in the child.

In the context of learning or problem-solving, when someone makes an error or mistake, rectifying the error involves taking actions to identify and correct the mistake, ensuring that the correct and accurate information or solution is obtained.

Key Points

• In the given situation, the most appropriate way to support the student and rectify the error is to ask the student to count backwards after representing 101 and 93 on a number line before teaching formal algorithm.
• By using a number line, the student can visually grasp the concept of subtraction and understand the process of counting backwards to find the difference between the two numbers.
• This approach is a hands-on way to build a foundational understanding of subtraction before introducing the formal algorithm.
• It encourages a deeper comprehension of the mathematical operation and helps the student correct their misconception.

Hence, 'ask the student to count backwards after representing 101 and 93 on a number line before teaching formal algorithm' is correct.

Formative assessment tasks help teachers to design timely interventions in case of difficulties faced by children.

Key Points

• For instance, if a teacher identifies through formative assessment tasks that a group of students is struggling with a particular mathematical concept, they can modify their instruction to address those difficulties.
• This may involve providing additional examples, using different teaching strategies, or providing more opportunities for practice.
• In this way, formative assessment tasks help teachers to ensure that their instruction is targeted and responsive to the needs of their students.
• By using these tasks to gather information on student learning and understanding, teachers can make informed decisions about what adjustments need to be made to their instruction to support student success.
• Formative assessment tasks play an important role in helping teachers to provide high-quality mathematics instruction and support student learning.

Hence, it can be concluded that formative assessment tasks help teachers to design timely interventions in case of difficulties faced by children is the most appropriate reason for conducting formative assessment tasks in mathematics classrooms.

The National Curriculum Framework (NCF) 2005 is a comprehensive document that provides guidelines for school education in India.

Key Points

• As per National Curriculum Framework 2005, Position paper on Mathematics, appreciating the richness of 'folk algorithms' during the classroom process will not help in developing Formal Algorithm.
• Appreciating folk algorithms, which are informal or traditional problem-solving methods used by people in everyday life, might not directly help in developing formal algorithms, which are systematic and precise step-by-step procedures used in mathematics.
• While folk algorithms can provide cultural context and practical problem-solving insights, they might not align directly with the development of formal mathematical algorithms.

Hence, it can be concluded that option 2 is the correct answer.

The Van Hiele theory of geometric thinking is a model developed by Dutch educators, Pierre van Hiele and his wife, Dina van Hiele-Geldof, in the late 1950s. According to this theory, children develop their geometric understanding through five different levels: visualization, analysis, abstraction, deduction, and rigor.

Key Points​

According to the Van Hiele's Theory of geometric thinking, the child is at 3) Visualisation level.

• The Visualisation (or Recognition) level is the first of Van Hiele's levels of geometric understanding.
• At this level, a child recognizes shapes by their appearance, but does not understand the properties of these shapes.
• They perceive shapes as 'wholes' and may make connections to familiar, everyday objects.
• This is a holistic viewpoint where properties or relationships within the shape aren’t comprehended or seen.

Mathematics is a subject that requires logical and critical thinking, problem-solving, and analytical skills.

Key Points

• By developing curiosity in students, teachers can enhance their problem-solving abilities and help them become independent learners.
• This, in turn, will enable them to apply mathematical concepts and principles in real-life situations.
• As a mathematics teacher, it is essential to develop a sense of curiosity and inquisitiveness in students towards problem-solving.
• This can be done by creating a positive and challenging learning environment, encouraging students to ask questions and find answers, and providing them with opportunities to explore and discover.
• Moreover, developing curiosity in students also helps in fostering a love for learning and a lifelong interest in mathematics.
• When students are motivated to learn and explore new concepts, they are more likely to develop a positive attitude towards mathematics, which will help them succeed in the subject.

Hence, it can be concluded that developing curiosity in students to search for solutions to problems seems to be most important for a mathematics teacher.

Mathematisation is the process of converting real-world situations into mathematical ones, making sense of the mathematical results, and interpreting the solutions in the original context.

Key Points

• Assessing mathematisation abilities involves evaluating students' ability to apply mathematical concepts and skills in solving real-world problems, reason and justify their solutions, and communicate their ideas effectively.
• Assessing processes rather than knowledge: The emphasis is on assessing students' understanding of mathematical concepts and their ability to apply them, rather than just rote memorization of facts.
• It should also assess the ability of students to make connections between different mathematical concepts and use them effectively in problem-solving.
• This type of assessment encourages students to think critically and creatively, to collaborate with peers, and to develop a deep understanding of mathematical concepts rather than focusing on rote memorization of formulae and procedures.
• Assessments should not focus on memorization of formulae or algorithms but should assess students' understanding of the underlying concepts and their ability to apply them in different contexts.

Hence, it can be concluded that According to National Curriculum Framework, 2005, assessments in mathematics at the primary level should focus on A and C.

Mathematics is not just about learning concepts, formulas, and procedures, but also about developing a deeper understanding of the subject matter.

Key Points

• The 'Higher Aim' of teaching mathematics is to help learners develop their reasoning and critical thinking skills.
• This can be done by providing opportunities for learners to engage in exploratory and investigative activities, problem-solving tasks, and higher-order thinking tasks.
• The focus should be on understanding the concepts, rather than rote memorization and formula application.
• By developing reasoning and critical thinking skills, learners become equipped to handle complex situations, make informed decisions, and become independent thinkers.
• They also develop an appreciation for the beauty and elegance of mathematics and its applications in the real world.

Hence, it can be concluded that the National Curriculum Framework, 2005 highlights the importance of mathematics education in fostering higher-order thinking skills like reasoning, logical thinking, and problem-solving abilities in learners.

Creative thinking in mathematics involves the ability to generate original ideas and approaches to solve problems.

Key Points

• It requires flexible and divergent thinking to approach problems from multiple perspectives and consider various possibilities.
• Additionally, creative thinking in mathematics involves the ability to use and adapt procedures to fit a specific problem, rather than simply applying them blindly.
• Finally, a key feature of creative thinking in mathematics is the ability to use multiple approaches to solve a problem.
• This can involve looking for patterns or connections, breaking a problem down into smaller parts, or trying different strategies to see what works best.

Hence, it can be concluded that use of the given procedure for solving a problem is not a feature of creative thinking in Mathematics.

Questioning is an essential pedagogical tool in a mathematics classroom as it helps in assessing the students' understanding, errors, and misconceptions.

Key Points

• When a teacher asks questions, it provides an opportunity for students to express their thoughts and ideas, thereby allowing the teacher to gauge their understanding of the concepts.
• The teacher can then address the misconceptions and clarify the concepts accordingly.
• Through questioning, a teacher can also identify the common errors and misconceptions that students may have and provide corrective feedback.
• This feedback can be used to design better learning experiences that address the specific needs of the students. Thus, questioning not only helps in assessing but also in improving student learning.

Hence, it can be concluded that questioning' as a Pedagogic tool in a mathematics classroom should help in assessing the errors and misconceptions of students.

The Correct Answer is: B and C only

 Key PointsThe following are the key points related to the elephant:

• The elephant is the largest existing mammal on the Earth
• The oldest female elephant becomes the head of the herd.
• There are 10 to 12 female elephants and young ones in a herd.
• There is no male elephant in the herd, they leave when they turn 14 or 15.
• An adult elephant can eat up to 100kgs (1 quintal) of leaves and twigs in one day.
• A three-month-old elephant weighs about 200 kgs (2 quintals).
• Elephants do not rest much and sleep for only 2-3 hours per day.
• Elephants are usually found in tropical habitats.
• Elephants love to play with mud and water. The mud keeps their skin cool.
• Their big ears also work like fans. The elephants flap these to keep themselves cool.

​Thus,

A. Because of their heavy body structure elephants like to take too much rest: Incorrect 

B. Even three month-old baby elephants generally weighs about 200 kilograms: Correct

C. They love to play with mud and water: Correct

D. In an elephant herd, male and female elephants move together with their children: Incorrect

Key Points 

Kalaripayattu:

• Kalaripayattu is the martial art form prevalent in the Indian state of Kerala.
• The word meaning of Kalaripayattu is “art of the battlefield".
• It is believed to be Lord Vishnu is the founder of martial arts in India.
• Kalaripayattu is considered as the oldest form of martial arts in India.
• Kalaripayattu was used as a code of combat by the dynasties in South India.
• Kalaripayattu is considered the most scientific type of martial art form in the world.

Thus, the martial art form of Kerala considered highly scientific in practice is known as Kalaripayattu.

Additional Information 

Other important art forms in Kerala are:

• Kathakali.
• Mohiniyattam.
• Chakyar Koothu.
• Theyyam.
• Ottamthullal.

Important art forms in Tamil Nadu are:

• Kolattam.
• Bharatanatyam.
• Bommalattam.
• Chakkai Attam.
• Devaraattam.
• Therukoothu.

Important art forms in Karnataka are:

• Yakshagana.
• Somana Kunita.
• Jagghalige Kunita.
• Krishna Parijata.

Odissi is an Important art form in Odisha.

Concept:

Solution:

• A solution has a solvent and a solute as its components.
• The component of the solution that dissolves another component in it (usually in larger amounts) is called the solvent.
• The component of the solution that is dissolved in the solvent is called the solute (small quantity).

Explanation:

Solubility:

• The amount of the solute present in the saturated solution at this temperature is called its solubility.

The component that dissolves in water:

• A component is known as soluble if it fully mixes with water or insoluble if it doesn't mix in water.
• The lemon juice, sugar, salt, cooking soda and turmeric acid are soluble materials.
• They mix completely in water.

The component that does not dissolve in water:

• A component that does not dissolve in water is said to be insoluble in water.
• This means that the substance is not capable of being dissolved in water or forming a homogeneous solution with water.
• They can be easily separated from the mixture by straining it using a cloth.
• Examples of insoluble substances in water include oil, sand, chalk powder and certain types of minerals.

​Thus, chalk powder and sand can be separated from water by straining with a cloth.

Concept:

• People eat different things.
• The same thing can be used to prepare a variety of food items.

Explanation:

Food made out of rice:

• Rice is the staple food of the eastern and southern parts of India.
• Rice can be used to prepare dishes like biryani, kheer, idli, dosa and pulao.

Food made out of wheat:

• Wheat is the staple food of the western and northern parts of India.
• Wheat can be used to prepare dishes like puri, paratha, chapati, cake, halwa and bread.​

Thus, foods made out of rice are dosa, kheer and pulao.

Mukul hasta Mudra:

• The "Mukula hasta" mudra is also associated with the lotus flower in some contexts.
• In Hinduism, the lotus flower is a sacred symbol that represents purity, enlightenment, and spiritual growth.
• The Mukula hasta mudra, with its circular shape resembling a lotus flower, is sometimes used to represent the lotus in Indian classical dance and yoga.
• The mudra is formed by joining all the fingertips together, creating a small circle that resembles the shape of a lotus flower.
• This mudra is often used in dance and yoga to represent the lotus, particularly in poses or movements that are associated with the flower, such as Padmasana (lotus pose) or movements that imitate the opening and closing of a lotus flower.
• Overall, the Mukula hasta mudra can have different meanings depending on the context in which it is used.
• While it is associated with completion and unity, it can also be used to represent the lotus flower and its symbolic meanings.

Thus, the 'mukul hasta' Mudra, which is formed on joining all the finger tips denotes lotus flower.

The correct answer is Beetroot juice and spinach.

Key Points

• Iron is a critical component of hemoglobin, the protein in red blood cells that carries oxygen throughout the body.
• Anemia occurs when the body doesn't have enough red blood cells or hemoglobin to transport oxygen effectively, which can result in fatigue, weakness, and other symptoms.

Important Points

• Beetroot juice and spinach can be helpful in treating anemia as they are both good sources of iron, which is an essential nutrient for the production of red blood cells.

Hence, the correct answer is Beetroot juice and Spinach.

The correct answer is 'cook the rice or cereals in the water in which they are soaked'​.

Key Points

• Cook the rice or cereals in the water in which they are soaked:
• This is correct because when you soak rice or cereals, some of the nutrients, especially water-soluble vitamins and minerals, leach into the soaking water.
• By cooking them in the same water, you can minimize nutrient loss and retain those beneficial components.
• When you soak rice or cereals, especially whole grains, it helps to soften them and reduce cooking time.
• The soaking process can also activate enzymes that help break down anti-nutrients, making the grains more digestible and enhancing nutrient availability.
• By cooking rice or cereals in the soaking water, you allow the nutrients that have leached into the water to be reabsorbed into the food during the cooking process.

The correct answer is Amla, Spinach, Jaggery

• Nutrients are necessary for the growth, energy, repair, and maintenance of the body.
• Nutrients are classified as Macronutrients and Micronutrients.
• Carbohydrates, Calories, and Proteins are an example of Macronutrients.

Key Points

Micronutrients:

• Micronutrients are the elements required by us in small quantities.
• Iron, cobalt, chromium, iodine, copper, zinc, and molybdenum are some of the micronutrients.
• Deficiency of any of the nutrients affects growth and development.
• They play a major role in the metabolic activities of the body.
• ​These include vitamins and minerals.

Important Points Iron:

• Iron is important in making red blood cells, which carry oxygen around the body.
• A lack of iron can lead to iron-deficiency anemia.
• Good sources of iron include:
• liver
• red meat
• beans, such as red kidney beans, edamame beans and chickpeas
• nuts
• dried fruit – such as dried apricots
• fortified breakfast cereals
• soy products
• Amla, spinach, peas, lentils
• Jaggery

​Thus, Amla, Spinach, Jaggery are rich sources of iron.

Additional Information

Molting:

• The process by which birds shed their feathers at specific times is known as molting.
• Molting is a natural process that allows birds to replace old, worn-out feathers with new ones.
• During molting, birds gradually shed their feathers, and new ones grow in their place.
• Molting is a crucial process for birds because feathers play a vital role in their survival.
• Feathers help birds regulate their body temperature, fly, and attract mates.
• By shedding old feathers and growing new ones, birds can maintain their ability to perform these functions.
• The timing of molting can vary depending on the bird species and other factors such as climate and breeding cycles.
• Some birds molt once a year, while others may molt several times a year.
• Molting can also be influenced by factors such as diet and stress.
• Thus, molting is a normal and essential process for birds, enabling them to maintain their health and vitality.

In this way, birds shed their feathers at specific times; this process is called molting.

Water scarcity:

• The lack of sufficient water resources to meet regional water usage demands is known as water scarcity.
• Various factors, such as the expanding population, increased agricultural needs, industrial use, and the generation of electricity, all contribute to the rise in water demand.
• Water scarcity refers to a situation where the demand for water exceeds the available supply of water.
• This can lead to a lack of access to safe and clean drinking water, which can have serious consequences for human health and well-being.
• When there is water scarcity, people may be forced to drink water that is contaminated.
• Contamination with pollutants or pathogens, can cause diseases such as diarrhea, cholera, and typhoid fever.
• In some cases, people may have to travel long distances to collect water, which can be time-consuming and physically taxing, particularly for women and children.

Thus, water is said to be scarce in an area if water received is unsafe for drinking and cooking.

Additional Information

A major reason for water scarcity in India:

• By 2025, it is predicted that large parts of India will join countries or regions having absolute water scarcity.
• Water scarcity in most cases is caused by over-exploitation, excessive use and unequal access to water among different social groups.
• Over-exploitation and mismanagement of water resources will cause ecological crises that may have a profound impact on our lives.

Explanation:

• Torang means Forest in kuduk language.
• Kuduk: It is a special community of people who live in the forest of Jharkhand.
• The language they speak is also called Kuduk.
• Adivasis are the people who live in the forest.
• They lead a very simple life and depends on the forest for their survival.

Thus, Torang in Kuduk language means forest.

Concept:

Direction is divided into 8 sections, 4 cardinal directions, and 4 ordinal directions.

• The four cardinal directions are the directions north, east, south, and west, commonly denoted by their initials N, E, S, and W.
• East and west are perpendiculars (at right angles) to north and south.
• East is in the clockwise direction of rotation from north and west is directly opposite east.
• The ordinal directions are north-east (NE), south-east (SE), south-west (SW), and north-west (NW).
• NE, SE, SW, and NW lie in between the cardinal directions north and east, south and east, south and west, and north and west respectively.

Diagram:

Thus, with respect to the milk shop, the direction of the house is South-West

The soft part of the feather of birds on either side is known as barb.

Key Points

Barb:

• The soft part of the feather on either side is known as the barb.
• Feathers are made up of a central shaft (rachis) and many side branches known as barbs.
• The barbs, in turn, have smaller branches called barbules and these have tiny hooks or hooklets called barbicels for cross-attachment.
• This structure gives the feather its shape and the ability to trap air, providing both insulation and the capacity for flight.
• A feather's barbs are what provide its fluffiness and color.
• The microscopic structure of the barbs and barbules can cause light to scatter in a way that gives the feather its color.

Additional Information

Rachis:

• The rachis is the main shaft of the feather, extending from the base to the tip.
• The barbs extend out from the rachis.
• However, the rachis itself is not the soft part of the feather.

Quill:

• The quill, also known as the calamus, is the part of the feather attached to the bird's skin.
• It's the hollow, stiff tube at the base of the feather from which the rachis extends.
• It is not the soft part of the feather, so this is not the correct answer.

Calamus:

• As mentioned in the explanation for the quill, the calamus is the hollow, stiff portion at the base of the feather. It's not the soft part of the feather, so this is not the correct answer.

Concept:

Communicable diseases:

• These diseases are caused by germs like bacteria, viruses, protozoa, etc.
• These diseases spread from infected person to healthy person through
• Direct contact such as hand shaking, hugging, etc.
• Sharing of clothes, utensils, food, etc.
• Coughing & sneezing

Explanation:

Malaria:

• Malaria is caused by a protozoan, Plasmodium sp. (P. vivax, P. malariae, and P. falciparum).
• P. falciparum is the most common species and widely distributed species.
• It causes the most serious kind of malaria, i.e. malignant malaria which can be fatal.
• The female Anopheles mosquito is the vector of Plasmodium, which transfer the sporozoites (infectious form) in the human body.
• Symptoms:
• Fever and flu-like illness, including shaking chills,
• Headache,
• Muscle aches, tiredness,
• Nausea, vomiting, and diarrhoea

Thus, a person with malaria would have the most common symptoms like fever and chills.

During a field trip for EVS teaching, students should have the opportunity to engage in meaningful discussions about the environment, sustainability, conservation, and other related topics.

Key Points

• These discussions can help students connect what they are learning in the classroom to real-life situations and can promote critical thinking, problem-solving, and active engagement with the material.
• While setting goals for the field trip, choosing means of travel, and maintaining a reflective journal is also important, they are not as crucial as creating opportunities for discussion.
• Setting goals can help focus the field trip, but if there is no meaningful discussion, the goals may not be met.
• It provides a framework for the experience and helps ensure that students achieve meaningful and relevant learning outcomes.

Hence, it can be concluded that creating opportunities for discussion is the most important for students on a field trip for EVS teaching.

The activity-based approach in EVS refers to a teaching method that emphasizes hands-on learning experiences and activities to engage students in the study of environmental science. Instead of relying solely on lectures or textbooks, educators using an activity-based approach seek to actively involve students in the learning process through various activities, such as experiments, field trips, role-plays, and group projects.

Key Points

• First educators should create a positive environment by providing clear instructions, encouraging collaboration and communication, and fostering a supportive and inclusive atmosphere.
• Educators should have a well-organized plan for the activity, including specific learning objectives, materials needed, and steps to follow.
• Next, educators should extend support to each student, ensuring that they understand the activity and have the necessary resources to participate fully.
• Finally, they should recapitulate the theme or key concepts, helping students to reflect on what they have learned and how it connects to broader topics in EVS.
• By following this sequence, educators can create a structured and engaging activity that promotes meaningful learning and helps students develop critical thinking, problem-solving, and communication skills.

Hence, it can be concluded that create a positive environment, have a well-organised plan, extend support to each student, recapitulate the theme is the correct sequence among the four stages of organising an activity-based approach in EVS.

Ask students how they can protect plants from catching cold and Ask all the students about what they think about Ria's question will be more appropriate.

Key Points

• By asking the students how they can protect plants from catching a cold, the teacher is prompting them to consider various strategies for protecting plants in rainy weather, such as covering them with plastic sheets or relocating them to a sheltered area.
• This approach can help students develop problem-solving skills and encourage them to think about the practical aspects of plant care.
• By asking all the students what they think about Ria's question, the teacher is inviting the students to share their thoughts and opinions on the topic.
• This approach can help create a collaborative and inclusive classroom environment where students feel comfortable sharing their ideas and perspectives.
• Additionally, by encouraging discussion, the teacher can help students develop critical thinking and communication skills.

Hence, it can be concluded that option 3 is the correct answer. 

Additional Information

• Option A is not correct because plants cannot catch a cold in the same way that humans do, as they are not affected by viruses that cause colds.
• This response would not provide accurate information and could potentially confuse students.

Option B is also not correct because plants can be affected by various diseases and pests, but not by viruses that cause colds.

The cooperative learning approach in EVS is a teaching method that emphasizes learning through group work, collaboration, and shared responsibility.

Key Points

• In this approach, students work together in groups to complete a task or solve a problem, with each student taking on a specific role and contributing to the group's overall success.
• The goal of cooperative learning in EVS is to enhance the value of group activities.
• This approach encourages students to work together, share ideas, and support each other in their learning.
• By working in groups, students can develop important social and communication skills, such as leadership, negotiation, and conflict resolution.
• Cooperative learning also promotes a sense of community and shared responsibility in the classroom. Students learn to value each other's contributions and to take ownership of their own learning.
• This approach can be particularly effective in EVS, as it allows students to explore complex environmental issues together and to develop a deeper understanding of the interrelationships between living organisms and their environment.

Hence, it can be concluded that cooperative Learning approach in EVS is to enhance the value of groups activities

By asking Riddhi to include boys in the Rangoli-making activity, the principal is addressing the curricular expectation related to identifying issues concerned with equality, justice, and human dignity.

Key Points

• This expectation is a part of the EVS curriculum at the primary level, which emphasizes the importance of promoting values such as equality, justice, and human dignity in the classroom.
• The principal is promoting the idea that activities should be inclusive and accessible to all students, regardless of gender.
• This approach can help create a more equitable and inclusive learning environment where all students feel valued and respected.
• By promoting the values of equality, justice, and human dignity, the EVS curriculum aims to foster a sense of social responsibility and empathy among students.
• By exploring issues related to social justice and equity, students can develop a deeper understanding of their own place in society and the impact that their actions can have on others.

Hence, it can be concluded that option 4 is the correct answer.

Creative expression in EVS is an important aspect of learning that allows students to express their ideas and thoughts in a unique and imaginative way.

Key Points

• It is a process of using creative thinking to produce something original and innovative, which can help students develop a deeper understanding of the concepts being taught in EVS.
• Creative expression is not just about making something beautiful or artistic; it is also about developing critical thinking, problem-solving, and decision-making skills.
• Through creative expression, students can explore and experiment with new ideas, collaborate with others, and take risks in their learning.
• It can help students connect with the natural environment and develop a deeper appreciation for the world around them.
• For example, students can use creative expression to create models of ecosystems, design sustainable living spaces, or develop innovative solutions to environmental challenges.

Hence, it can be concluded that Creative expression in EVS is essential for innovation.

The Project Method is an approach to learning that emphasizes the application of knowledge and skills to real-world problems or projects.

Key Points

• The Project Method is an educational approach that places emphasis on students engaging in hands-on, experiential learning through the completion of a project.
• Learners are tasked with completing a project that requires them to apply what they have learned in a practical and meaningful way.
• This method provides learners with an opportunity to engage in hands-on, experiential learning, which helps them to develop a deeper understanding of the subject matter and to build their problem-solving and critical thinking skills.

​Hence, it can be concluded that the project method allows learners to apply and practice what they have learnt. 

Additional Information

• The other methods mentioned, such as the Questionnaire Method, Observation Method, and Experiment Method, can be valuable for gathering data and information, but they do not necessarily provide learners with an opportunity to apply and practice what they have learned in a meaningful way.

Environmental Study is a multidisciplinary subject that involves learning about the natural environment, ecosystems, human impact on the environment, and sustainable development. To fully understand and appreciate this subject, it is important to engage in active and experiential learning.

Key Points

• Experiences during learning are important because they provide learners with an opportunity to engage with the natural environment and observe the concepts and principles taught in class in real-life situations.
• For example, taking a field trip to a local park or wetland can help learners understand the importance of biodiversity and the role of different species in maintaining ecological balance.
• Similarly, conducting experiments or engaging in hands-on activities can help learners understand scientific concepts and principles related to the environment.
• Interaction during activities is also important because it allows learners to engage with their peers and teachers in a collaborative and constructive manner.
• Through group activities and discussions, learners can share their ideas and perspectives, learn from each other, and develop critical thinking and problem-solving skills.

Hence, it can be concluded that options C and D are the correct answers.

In the context of EVS, this approach can involve starting with topics that are familiar to the learners, such as their local environment, natural resources, or environmental issues that affect their community.

Key Points

• The known-to-unknown approach is a teaching strategy that involves building on the learners' existing knowledge and experiences to introduce new concepts and ideas.
• This approach is effective because it allows learners to connect new information to what they already know and understand, which makes it easier for them to comprehend and retain new knowledge.
• As learners become more familiar with the subject matter, the teacher can gradually introduce more complex or abstract concepts and ideas, building on what the learners already know.
• This can help to avoid overwhelming the learners with too much new information at once, which can lead to confusion and frustration.

Hence, it can be concluded that a Pedagogical approach for EVS teaching-learning should adopt known to unknown approach.

Assessment in Environmental Studies (EVS) should be comprehensive and varied to evaluate learners' knowledge, skills, and attitudes towards the environment.

Key Points

• Group work is a valuable assessment tool for EVS because it promotes collaborative learning and allows learners to share their ideas and perspectives with one another.
• Through group work, learners can develop their communication, teamwork, and problem-solving skills, as well as deepen their understanding of the subject matter.
• Project work is also an effective assessment tool for EVS because it allows learners to apply their knowledge and skills to real-world problems or challenges.
• This can help learners to develop critical thinking, creativity, and problem-solving skills, as well as a deeper understanding of the subject matter.

Hence, it can be concluded that project work and group work are the assessment tools will be most suitable for school-based assessment in EVS.

EVS is a multidisciplinary subject that requires learners to develop a range of skills, including critical thinking, problem-solving, communication, and collaboration. 

Key Points

• The EVS teacher's role is to facilitate learners' acquisition of knowledge and skills by creating a learning environment that is engaging, interactive, and student-centred.
• As a facilitator of knowledge, the EVS teacher should encourage learners to explore and discover knowledge for themselves, rather than simply transmitting information.
• This can be achieved through a variety of teaching strategies, such as inquiry-based learning, project-based learning, and experiential learning.
• The EVS teacher should also encourage learners to ask questions, challenge assumptions, and develop their own perspectives on environmental issues.
• This can help to promote critical thinking and develop learners' ability to analyze and evaluate information.

Hence, it can be concluded that the role of an EVS teacher is best described as a facilitator of knowledge.

Environmental Studies (EVS) is a multidisciplinary subject that requires a comprehensive curriculum that encompasses various essential components.

Key Points

• Including questions related to the natural curiosity of children to encourage their active engagement and exploration of the subject matter.
• It stimulates their innate curiosity and promotes a deeper understanding of environmental concepts.
• Connecting knowledge with the life of children is crucial for making the curriculum relevant and meaningful.
• It helps students see the practical applications of EVS in their daily lives, fostering a stronger connection and appreciation for the subject.
• Incorporating cultural-social diversity ensures that the EVS curriculum recognizes and respects the different cultural, social, and ecological contexts in which students live.
• It promotes inclusivity, understanding, and appreciation of diverse perspectives and experiences related to the environment.

Hence, it can be concluded that statements B, C and D are correct regarding components that must essentially be incorporated while structuring the EVS curriculum.

Anecdotal Records are brief, objective, and factual notes that teachers take about specific behaviours or actions exhibited by learners in particular situations.

Key Points

• These records are used to observe and document learners' progress, strengths, and areas for improvement.
• Anecdotal Records provide a clear picture of learners' behaviour and help teachers to make informed decisions about their teaching practices, strategies, and interventions.
• Anecdotal Records are flexible, easy to use, and can be adapted to fit a wide range of learning environments.
• This tool is commonly used by teachers to observe and document learners' progress, strengths, and areas for improvement.
• Anecdotal Records are flexible, easy to use, and can be adapted to fit a wide range of learning environments.

Hence, it can be concluded that tools that can be used for observation include anecdotal records.

Anaya observed ants carrying a dead centipede and estimated that the ants were very powerful as they were able to carry a larger animal despite their small size.

Key Points

• She then made an inference based on her observation and estimation that ants are capable of carrying bigger animals.
• Observation is an important skill in EVS as it involves using one's senses to collect data and information about the environment.
• In this case, Anaya used her sense of sight to observe the ants carrying the dead centipede.
• Estimation is another important EVS process skill that involves making a rough calculation or approximation based on the available information.
• In this case, Anaya estimated that the ants were very powerful based on their ability to carry a larger animal.

Hence, it can be concluded that observation, estimation and inference are the EVS process skills are involved by Anaya in making this generalization.

Constructive assessment is an approach to assessment that aims to provide feedback and guidance for students to improve their learning and performance.

Key Points

• It is focused on identifying areas for improvement and providing strategies and support to help students progress.
• This type of assessment is often contrasted with summative assessment, which is more focused on assigning grades or evaluating students' performance at the end of a learning period.
• In the context of school-based assessment in Environmental Studies (EVS), constructive assessment can be very useful.
• For example, a teacher could use constructive assessment to provide feedback on a student's understanding of a concept or their ability to apply what they have learned in a real-world context.
• By using constructive assessment, teachers can help students develop their skills and knowledge in a supportive and encouraging environment.

Hence, it can be concluded that constructive assessment is the best description of the nature of school-based assessment.

The correct answer is 'the British'

Key Points

• The necktie, as we know it today, is a product of the modern Western world and became popular in Europe from the 17^th century onwards.
• The British colonial rule in India, which lasted from 1858 to 1947, introduced many aspects of Western culture to the country, including dress habits.
• Neither the Mughals nor the Turks, who had earlier influences on India, brought the concept of the necktie. It did not have any presence in Indian attire before the British era.
• As such, the necktie is not indigenous to India, but was introduced through cultural exchange and influence.

Therefore, the correct answer is Option 3.

The correct answer is 'It has become a status symbol.'

Key Points

• A tie, while originally designed as a purely decorative element, has become a symbol of professionalism and respect in many cultures.
• It doesn't cover any vital parts of our body nor does it provide physical comfort. Its purpose is more aesthetic and symbolic than functional.
• Its cultural suitability varies by culture and region. In many non-Western cultures, the tie is not a traditional part of attire.
• Over time, due to the influence of Western business and formal attire, the tie has become a status symbol and a sign of professional attire.

Therefore, the correct answer is Option 4.

The correct answer is 'a trader'

Key Points

• A judge, a business executive, and an advocate, by virtue of their profession and their work environment, are often required to wear formal attire, which frequently includes a tie.
• A trader, especially in the modern context where many traders work in informal settings or from home, does not necessarily have to wear a tie as part of his dress.
• While some traders in formal settings might wear a tie, it is not an essential part of their dress code.
• This reflects the changing dynamics of professional attire in different industries and roles.

Therefore, the correct answer is Option 3.

The correct answer is '(a) and (b) are incorrect but (c) is correct.'

Key Points

• The tie, being a personal accessory, can be chosen to reflect a person's personality, but it doesn't necessarily imply specific traits as outlined in statements (a) and (b).
• A plain and sober tie may reflect a person's preference for simplicity or formality, but it doesn't necessarily mean the person is happy-go-lucky.
• Similarly, a tie with a small tight knot could indicate a preference for neatness and precision, but it doesn't necessarily mean the person is serious or self-centered.
• The choice of a tie can reflect a person's pride in their appearance or their personal style, which aligns with statement (c).

Therefore, the correct answer is Option 4.

The correct answer is 'Both (a) and (b) are incorrect.'

Key Points

• Whether a necktie is uncomfortable or not is a subjective experience and depends on the individual wearing it. Some people find it uncomfortable, while others do not.
• Officers of the court, like lawyers and judges, wear a tie as part of their formal attire. It is a tradition and expectation in many legal systems, especially those influenced by British law.
• The writer's understanding or lack thereof regarding why an officer of the court should wear a tie is not necessarily universally applicable or a measure of the tie's appropriateness.
• Without further context, we can't make a definite judgement about the writer's understanding.

Therefore, the correct answer is Option 4.

The correct answer is 'Adverb'

Key Points

• An adverb clause is a group of words that function as an adverb. This means they modify a verb, an adjective, or an adverb.
• The given clause, 'Though the British left our country a long time ago,' is modifying an action that is implied but not stated in the sentence. We can infer that the clause is setting up a contrast with some other action or state of affairs.
• This clause is not serving as the main (principal) clause of the sentence, nor is it functioning as a noun or an adjective.
• Therefore, it can be categorized as an adverb clause as it is providing additional context or modifying an implied verb.

Therefore, the correct answer is Option 4.

The correct answer is 'glorified'

Key Points

• The word 'venerated' means highly respected or revered. It suggests a sense of deep respect, often implying a spiritual or religious connotation.
• The term 'glorified' aligns closely with this, as it means to describe or represent something as admirable, especially disproportionately so.
• 'Powerful' refers to something having great power or strength, which doesn't necessarily correlate with respect or admiration.
• 'Maligned' means to speak about someone or something in a critical or negative way, the opposite of 'venerated'.
• 'Publicised' means to make something widely known, which doesn't necessarily mean it is respected or revered.

Therefore, the correct answer is Option 1.

Additional Information

• 'Powerful' is an adjective that describes something or someone possessing great power or strength.
• 'Maligned' is a verb in the past tense, meaning to have spoken about someone or something in a critical or negative way.
• 'Publicised' is a verb in the past tense, meaning to have made something widely known through media or other forms of communication.

The correct answer is 'Adverb'

Key Points

• In the context of the phrase "can be placed apart," the word "apart" functions as an adverb, giving additional information about how the action of placing is being performed.
• Adverbs often modify verbs, explaining the manner, place, frequency, or degree of the action. In this case, "apart" is describing the manner in which someone can be placed or distinguished.
• The construction "can be placed apart" is referring to differentiating someone based on the appearance of their tie, and "apart" emphasizes that this differentiation is noticeable or separate from others.
• The use of "apart" in this context adds depth to the description, highlighting how the tie and its appearance make a person stand apart or distinguishable in the crowd.

Therefore, the correct answer is Option 4.

Additional Information

• Noun: A noun represents a person, place, thing, or idea. "Apart" doesn't function as a noun in this context.
• Verb: A verb shows action or a state of being. "Apart" doesn't function as a verb in this context.
• Adjective: An adjective describes or modifies a noun or pronoun. "Apart" doesn't function as an adjective in this context.

The correct answer is 'conceals'

Key Points

• The word 'proclaims' means to announce or declare something openly or publicly.
• 'Conceals' is the opposite of 'proclaims' as it means to hide or keep secret.
• 'Sounds', 'blares', and 'releases' do not have meanings opposite to 'proclaims'.

Therefore, the correct answer is Option 2.

 Additional Information

• 'Sounds' can be a verb referring to the action of making a noise or it can be a noun referring to auditory perceptions or noises.
• 'Blares' is a verb referring to the action of making a loud, harsh sound.
• 'Releases' is a verb that means to allow or enable to escape from confinement; to set free.

The correct answer is a handsome young man.

Key Points

• This question requires context to determine the correct answer. Assuming the context involves a speaker reflecting on his past, it would be most likely that the speaker is referring to his youth when he was attractive.
• The options "a man of wealth", "a very brave soldier" and "an angel who had come to earth" are less likely as they refer to specific roles or statuses that are not universally applicable to all young men.
• The phrase "handsome young man" refers to physical attractiveness, which is a common way people often nostalgically refer to their younger selves.
• Without additional context, it's safe to assume the speaker is referring to a general characteristic of youth, which is physical attractiveness.

Therefore, the correct answer is Option 1.

The correct answer is 'become the luckiest man on earth'

Key Points

• Being chosen by a "beloved goddess" would imply a significant moment of great fortune or luck for the speaker.
• The phrase "luckiest man on earth" conveys this feeling of immense luck and joy that the speaker would likely feel in such a moment.
• Becoming an angel or a God suggests a transformation into a divine being, which is not necessarily implied in the act of being chosen by a goddess.
• Winning a "glorious prize" might also reflect the speaker's feeling, but the phrase "luckiest man on earth" more accurately captures the depth of emotion and fortune associated with being chosen by a goddess.

Therefore, the correct answer is Option 3.