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Question
Guess and Find Out
How long is the thread in a reel?
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Solution
The length of the thread depends on the thickness of the reel.
It may be 50 metres, 100 metres, 200 metres or 500 metres or more.
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RELATED QUESTIONS
This is a 100 metre race for girls. Arundhati is nearest the finishing line. She is about 6 metres from it.
Behind her is Rehana. Konkana and Uma are running behind Rehana. Look at the picture. To answer the question below:
How far are Konkana and Uma from the finishing line?
Have you heard about a 1500 m or 3000 m race? (You remember that 1000 metres make 1 kilometre and 500 metres make half a kilometre.)
So you can say -
In a 1500 metres race people run ______ km.
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Look at the Women's World Records. What is the difference between the longest jump and the highest jump?
Running Exercise
The doctor has told Devi Prasad to run 2 km every day to stay fit. He took one round of this field. How far did he run?
The field was very far from his home. So he chose a park nearby. The boundary of the park was about 400 metres long.
- How many rounds of the park must Devi Prasad run to complete 2 km?
- One day the weather was very good and a cool breeze was blowing. He felt so good that he kept jogging till he got tired after 8 rounds. That day he ran ____ km and ____ metres!
Guess and Find Out
How long is the string of a kite reel? Can it be more than a kilometer long?
Measure your arm and your mother's arm. What is the difference?
How many shirts can be hung on this wire?
What are the little lines on the scale used for?
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 | - | - |
| - | - | |
| - | - | |
| - | - |
Which of these will be in centimetres and which will be in metres?
Height of your mother
