Please select a subject first
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You can also play it. Here are the cards for you. Work out the combination. Place the cards in the right boxes.
| 50 | 70 | 20 | 50 | 20 | 70 | |||||
| + | = | , | - | = | ||||||
| + | = | - | = |
Concept: undefined >> undefined
You can also play it. Here are the cards for you. Work out the combination. Place the cards in the right boxes.
| 30 | 42 | 12 | 30 | 42 | 12 | |||||
| + | = | - | = | |||||||
| + | = | - | = |
Concept: undefined >> undefined
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Measure your arm and your mother's arm. What is the difference?
Concept: undefined >> undefined

In how many steps will Dorji cross the road?
Concept: undefined >> undefined

How many cups can be placed in a line on this table?
Concept: undefined >> undefined

How many pots can be placed to reach the tree branch?
Concept: undefined >> undefined

How many shirts can be hung on this wire?
Concept: undefined >> undefined


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.
Concept: undefined >> undefined
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 | - | - |
| - | - | |
| - | - | |
| - | - |
Concept: undefined >> undefined
