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How many pots can be placed to reach the tree branch?
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How many shirts can be hung on this wire?
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The matchstick is 4 centimetres long.
The die is 1 centimetre from every side.
The lizard is 13 centimetres long.
- The leaf is ______ centimetres long.
- The wax colour is ______ centimetres long.
- Now, look at a scale that you find in a geometry box. How many centimetres does it have? ______
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What are the little lines on the scale used for?
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Look for things that are about 10 cm long.
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Look for things that are between 10 and 20 centimetres long.
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Look for things that are less than 1 cm long.
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Which is longer? Thumb or little finger?
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Guess the length of different parts of your body and check if your guess is correct. You can use a scale, string, measuring tape etc.
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Think - How will you know the number of centimetres if you measure with a rope, shoe-string, thread etc.?
| My measurement | My friend's measurement | |
| Nose | ______ centimetres | ______ centimetres |
| Around the wrist | ______ centimetres | ______ centimetres |
| Around the head | ______ centimetres | ______ centimetres |
| Ear | ______ centimetres | ______ centimetres |
| Hand (tip of middle finger to wrist) | ______ centimetres | ______ centimetres |
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Compare your measurement with your friends.
- Who has the biggest head and who has the smallest head?
- Who has the longest hand (from middle finger to wrist)?
- Which is longer? Your ear or your nose?
- Is any of your nails more than 1 centimetre long?
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Ant Gibli has to reach the grains. She is looking for the shortest road. Can you tell her which is shortest?
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Can you draw a road shorter than these? What is the length of that road?
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You must have seen shopkeepers measuring cloth with a metre rod.
- Take a metre rod and a rope.
- Make a knot at one end of the rope.
- Keep the metre rod with the rope.
- Mark 1 metre on the rope and make a knot there.
- Now the length between the two knots is 1 metre. This is your metre-rope.
If you don't get a metre rod use a measuring-tape and mark 100 centimetres on the rope. 100 centimetres are equal to a metre, so you get the metre-rope.
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Activity 1
- Find some things that look 1 metre long.
- Use your metre-rope to find which of these things are more or less than 1 metre.
| Name of the thing | More than 1 metre | Less than 1 metre |
| Length of table | - | - |
| Width of table | - | - |
| Width of door | - | - |
| Length of door | - | - |
| - | - | |
| - | - | |
| - | - |
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Activity 2
Some Class III children have marked a 1 metre height on the wall of their class.
You can also mark 1 metre on your class wall.
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Now make a chart of the heights of your friends. To measure the centimetres, you can use your small scale.
| Name | Taller/Shorter/Equal to 1 metre | How many centimetres more or less than a metre |
| Shambhu | Taller | 4 centimetres |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
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Which of these will be in centimetres and which will be in metres?
Width of computer screen
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Which of these will be in centimetres and which will be in metres?
Length of a Pagdi worn by Sikhs
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Which of these will be in centimetres and which will be in metres?
Height of a 1-year old child
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