Grade 1
  1. Numbers and Counting  1.1. Counting to 10  1.2. Counting to 20  1.3. Counting to 50  1.4. Counting to 100  1.5. Writing Numbers 1 to 10  1.6. Writing Numbers 1 to 20  1.7. Writing Numbers 1 to 50  1.8. Writing Numbers 1 to 100  1.9. Reading Numbers 1 to 10  1.10. Reading Numbers 1 to 20  1.11. Reading Numbers 1 to 50  1.12. Reading Numbers 1 to 100  1.13. Comparing Numbers  1.14. Ordering Numbers  1.15. Odd and Even Numbers  1.16. Number Patterns  1.17. Skip Counting by 2s, 5s, and 10s  1.18. Understanding Zero
  2. Basic Addition and Subtraction  2.1. Understanding Addition  2.2. Addition Facts within 10  2.3. Addition Facts within 20  2.4. Adding Zero  2.5. Adding One More  2.6. Adding Two More  2.7. Adding Three More  2.8. Adding Using Pictures  2.9. Addition Word Problems  2.10. Understanding Subtraction  2.11. Subtraction Facts within 10  2.12. Subtraction Facts within 20  2.13. Subtracting Zero  2.14. Subtracting One  2.15. Subtracting Two  2.16. Subtraction Using Pictures  2.17. Subtraction Word Problems  2.18. Introduction to Doubles Facts  2.19. Introduction to Making 10
  3. Place Value and Number Sense  3.1. Understanding Tens and Ones  3.2. Counting by Tens  3.3. Place Value within 20  3.4. Place Value within 50  3.5. Place Value within 100  3.6. Reading and Writing Two-Digit Numbers  3.7. Comparing Two-Digit Numbers  3.8. Decomposing Numbers
  4. Measurement  4.1. Length  4.1.1. Comparing Lengths  4.1.2. Measuring with Non-Standard Units  4.1.3. Using Standard Units (Inches and Centimeters) in Length  4.2. Weight  4.2.1. Comparing Weights  4.2.2. Heavy and Light Objects  4.2.3. Introduction to Grams and Pounds  4.3. Capacity  4.3.1. Comparing Capacity  4.3.2. Full and Empty  4.3.3. Introduction to Liters and Milliliters  4.4. Time  4.4.1. Telling Time to the Hour  4.4.2. Telling Time to the Half Hour  4.4.3. Days of the Week  4.4.4. Months of the Year  4.4.5. Understanding Yesterday, Today, and Tomorrow  4.5. Money  4.5.1. Recognizing Coins  4.5.2. Counting Coins  4.5.3. Introduction to Dollar and Cents Symbols  4.5.4. Simple Addition and Subtraction with Money
  5. Geometry  5.1. 2D Shapes  5.1.1. Recognizing 2D Shapes  5.1.2. Drawing 2D Shapes  5.1.3. Naming 2D Shapes  5.1.4. Properties of 2D Shapes  5.1.5. Sorting 2D Shapes  5.1.6. Composing Simple Shapes  5.2. 3D Shapes  5.2.1. Recognizing 3D Shapes  5.2.2. Naming 3D Shapes  5.2.3. Properties of 3D Shapes  5.2.4. Sorting 3D Shapes  5.3. Position and Direction  5.3.1. Left and Right  5.3.2. Above and Below  5.3.3. Inside and Outside  5.3.4. Near and Far  5.3.5. In Front and Behind
  6. Patterns and Sorting  6.1. Recognizing Patterns  6.2. Extending Patterns  6.3. Creating Patterns  6.4. Sorting by Color  6.5. Sorting by Shape  6.6. Sorting by Size
  7. Data and Graphing  7.1. Introduction to Data  7.2. Collecting Data  7.3. Tally Marks  7.4. Bar Graphs  7.5. Picture Graphs  7.6. Interpreting Simple Graphs
  8. Fractions  8.1. Understanding Halves  8.2. Understanding Fourths  8.3. Dividing Shapes into Equal Parts  8.4. Identifying Equal and Unequal Parts

Grade 1 → Measurement → Weight ↓


Comparing Weights


Comparing weights is an essential part of math education in Class 1. At this level, children learn to understand the concepts of “heavy” and “light”, as well as the idea of weighing two or more objects against each other.

When teaching young children how to compare weights, it is important to use simple language and concepts that are relevant to them. This way, they can easily grasp the ideas while having fun.

Understanding weight

Weight refers to how heavy or light something is. We compare weight by looking at two or more things and figure out which thing is heavier or lighter. For example, when you hold a feather in one hand and a book in the other, you can tell which thing is heavier. Generally, in Grade 1, we use objects that children are familiar with to explain these concepts.

Real-world example

Think of a small apple and a large plastic toy. When you hold both, you can feel that the apple is heavier than the toy. This is because the apple weighs more.

Let's look at some simple visual examples to help you understand the concept of weight comparison.

Wing Book

In this picture, we have a red square representing a feather and a blue square representing a book. The blue square is heavier and larger, which shows that the book is heavier than the feather.

Using a balance scale

We often use scales to compare weights. Scales have two sides and we put things on both sides. The lower side is heavier. The upper side is lighter.

Example with balance scale

Imagine a seesaw (this is also a kind of balance scale). If you sit at one end and your friend sits at the other end, the lower end is where the heavier person is sitting. Let's create a visual example with a simple balance scale.

light box heavy box

In this example, a green circle represents a lighter box and an orange circle represents a heavier box. The scale tilts toward the orange circle, indicating that the orange box is heavier.

How to compare weights

Emotionally

Children can hold objects in their hands to feel which objects are heavy and which are light. For example, they can compare a pencil and a pen. Usually, a pen is heavier.

By using words

Teach children to use the words "heavier than" and "lighter than" to describe weight. For example, they might say, "The brick is heavier than the sponge," or "The balloon is lighter than the ball."

Safe and fun activities

Encourage children to sort toys by weight. Ask them to put heavier toys together and lighter toys together. They can also use a simple scale to test their predictions.

Text examples of weight comparison

Let's practice some text examples to help children learn to compare weights:

  • The cat is heavier than the mouse.
  • A rock is heavier than a leaf.
  • An empty cup is lighter than a cup filled with water.
  • A laptop is heavier than a sheet of paper.
  • The pillow is lighter than the chair.

Using these examples, you can ask children to find things around them and say which is heavier or lighter. For example, "Is your backpack heavier than your lunchbox?"

Practice exercises

Exercise 1: Identify

Ask: "Which is heavier? The toy car or the balloon?"

Answer: The toy car is heavy.

Exercise 2: True or false

1. A feather is heavier than a pillow. True or false?
2. Watermelon is lighter than grapes. True or false?
3. Shoes are heavier than socks. True or false?

Answer:

  • False
  • False
  • True

These exercises help children understand and remember which objects are heavy and which are light.

Conclusion

Comparing weights is not just about understanding weight, but also about thinking critically and observing the world. As children explore these concepts, they learn to make decisions, solve problems, and recognize differences in objects. These skills are foundational for the more complex math problems they will encounter later in school, making early understanding very important.

By participating in simple, fun and interactive activities, Class 1 children can easily learn how to compare, measure and describe weight using relatable examples and thoughtful exercises.


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Comparing Weights

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