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Dive into the intriguing world of weight with "Who Is Heavier," a chapter designed for Class 3 students to explore and understand the concept of weight through engaging stories and puzzles. This chapter introduces the young minds to comparing weights and understanding the balance, making mathematics a fun and tangible experience.

Introduction

Through “Who is Heavier,” students embark on a fascinating journey to explore the concept of weight using real-life examples and interactive activities. The chapter encourages students to think critically about the weight of different objects and how they can be compared using balance scales. It introduces the idea that the volume of an object does not necessarily determine its weight—illustrated by comparing items like popcorn and sugar, or peas and potatoes, to determine which would require a bigger bag. The chapter also delves into the practical application of these concepts through activities such as balancing pumpkins with tomatoes or mangoes and comparing the weights of classmates. With detailed explanations and a variety of exercises, this chapter lays a solid foundation for understanding weight and balance.

Assignments on CBSE Class 3 Mathematics: Who is Heavier

  1. Comparing Weights: Students are given pairs of items to discuss and predict which item is heavier, fostering observational and reasoning skills.
  2. Balancing Act: Learners use makeshift balances to compare the weights of different household objects, applying the concepts learned in a hands-on manner.
  3. Creative Weighing: Children are encouraged to use their creativity to find unconventional ways to measure weight, such as using a bag of flour to balance other kitchen items.
  4. Weighty Puzzles: Solve puzzles that involve determining the weight of objects based on given clues, enhancing problem-solving abilities.

Textbook Questions Solved for CBSE Class 3 Mathematics Chapter: Who is Heavier

GUR AND GROUNDNUTS
Q1: Are the groundnuts really more than the jaggery (gur) in weight, or do they just look more?
A1: Both of them are of equal weight. Groundnuts look more.

Q2: Now guess, for which of these do you need a bigger bag?

  1. 1 kg popcorn or 1 kg sugar?
  2. 1 kg peas or 1 kg potatoes?
    A2:
  3. For popcorn, we will need a bigger bag.
  4. For potatoes, we will need a bigger bag.

PUMPKIN TOMATO ‘PANGA’
Q1: How many small tomatoes do you think could lift the pumpkin up?
A1: 37 to 40 tomatoes.

Q2: How many big mangoes can balance the pumpkin?
A2: Around 15 mangoes.

Q3: How many pumpkins can balance you on the see-saw?
A3: Around 7-8 pumpkins.

Q4: Name some of your classmates who you think weigh:
(a) Almost the same as you.
(b) More than you.
(c) Less than you.
A4: Do as directed. (This question encourages students to think about the relative weight of their peers in a non-judgmental, observational manner.)

Q5: How many books can you lift with one hand keeping your arm straight?
A5: 4 books. (This answer will vary among students based on individual strength and the weight of the books.)

DOUBLE HER WEIGHT
Q1: When Kunjamma was born, she was 3 kg. Today is Independence Day, and Kunjamma is 5 years old. She is 28 kg now. Guess her weight and the number of sweets her parents distribute every Independence Day.
A1: This question leads to a discussion on Kunjamma’s growth over the years and calculating the number of sweets based on a pattern or tradition not explicitly mentioned in the question.

YUM YUM RICE
Q1: Fill in the blanks with the correct measurements for cooking a delicious dish.
A1:

  • 1 bowl peas
  • 8 glasses water
  • 2 onions
  • 1 pinch salt
  • 2 spoons mustard seeds
  • 1 spoon red chilli powder

Conclusion 
“Who is Heavier” provides Class 3 students with a solid foundation in understanding the concept of weight and balance. By exploring this chapter, students gain practical knowledge that applies not only in their academic pursuits but also in everyday life. Engaging with this material through the provided assignments and solved textbook questions enhances their learning experience, making mathematics both fun and meaningful.

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Questions and Answers for CBSE Class 3 Mathematics: Who is Heavier

  1. Q: Can popcorn be heavier than sugar?
    A: No, 1 kg of popcorn and 1 kg of sugar weigh the same, but popcorn takes up more space.
  2. Q: How many small tomatoes are needed to balance a pumpkin?
    A: Approximately 37 to 40 tomatoes are needed to balance a pumpkin.
  3. Q: How many books can you lift with one hand keeping your arm straight?
    A: It varies, but an example answer is 4 books.
  4. Q: Which is heavier, 1 kg of peas or 1 kg of potatoes?
    A: They weigh the same, but potatoes occupy less space and thus seem heavier.
  5. Q: Guess the weight of your school bag.
    A: Answers will vary; students are encouraged to actually weigh their bags for accurate answers.
  6. Q: What items in your house are heavier than 1 kg?
    A: Answers will vary; common items might include a bag of rice, a watermelon, or a large book.
  7. Q: How can you use a balance to find the heavier item between two choices?
    A: Place one item on each side of the balance and observe which side goes down.
  8. Q: What activities help you understand weight and balance?
    A: Comparing weights with a balance, guessing and verifying the weights of everyday items, and balancing objects against known weights.
  9. Q: Which requires a bigger bag, 1 kg of feathers or 1 kg of stones?
    A: 1 kg of feathers requires a bigger bag due to its larger volume.
  10. Q: How many classmates weigh more than you?
    A: Answers will vary; this question encourages students to think about weight in a social context.

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