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\ 04-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

3. Count and find the heights of these objects.
activity
Step-Count Relay Experiential Learning (a) (b) (c) (d)

1. Divide the class into small groups of 3–4 students each.

2. each group stands behind the start line.
3. One by one they walk from the start line to the finish line, placing their heel right in
front of their toe at each step.

4. They will count each step out loud: 1, 2, 3…

5. When they reach the finish line, they will look at the number of steps counted.
Compare & Talk: Look at the numbers of all the students of the group. crayons crayons crayons crayons

Which student had the fewest steps? (Big steps) l Which is the tallest among the objects above? ______________

Which student had the most steps? (Small steps) l Which is the shortest among the objects above? ______________
Ask: Why did some students take small steps and others big steps? Comparing WEigHTs

We use the words ‘heavy’ and ‘light’ to compare the weights of objects. We can
practice Time 10a compare the weights of some objects by just observing them. Look at the following.

1. Measure the length/height of these objects using body parts. Then complete

the following.
(a) The length of your classroom is ________ paces.

(b) The length of the blackboard in your classroom is ________ cubits. A pencil box is lighter A crayon is lighter than a A car is heavier than a

(c) The length of a wall of your classroom is ________ footspans. than a school bag. water bottle. bicycle.

(d) The height of your desk is ________ handspans.
(e) The length of your crayon is ________ digits/fingers. Think Tank Experiential Learning Logical Thinking

2. Count and find the lengths of these objects. 1. Are smaller objects always lighter than bigger objects?
2. Take a banana in one hand and an orange in the other. Can you say which one is lighter?

(a) erasers a Balance or scale

When we are unable to say which item is heavier or lighter just by
(b) erasers looking at them, we use a balance or scale to compare weights. A
balance has two pans.

(c) erasers Look at the balance given here. There is a watermelon on one pan
and a papaya on the other. The pan with the watermelon goes

l Which is the longest among the objects above? ______________ down. The pan with the papaya goes up.

l Which is the shortest among the objects above? ______________ Thus, the watermelon is heavier than the papaya or the papaya is lighter than the
watermelon.

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