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We will measure objects by evaluating them with different objects like
clips, ribbons, pencils or utilizing our physique components for instance handspan, foot,
cubit and stride. These are non-standard items of size.
In historical occasions, folks used hand spans, cubits, and many others., as items of measurement.
We someday use our physique components like finger, hand, foot and
forearm to measure size of smaller objects.
We see many issues round us. Some are brief in size like pencil, crayon or a toothbrush. Some objects are lengthy like ladder, tree or buildings.
We’ve got learnt to measure objects through the use of physique components like fingers,
handspan, cubit and footspan. We will additionally examine size of two objects
through the use of the physique components.
The space between the tip of the elbow to the tip of the center finger is named a cubit.
The size of the desk in classroom could be measured with
cubits.
What number of cubits is your desk? __________
Word: Cubit is a measurement from elbow to fingertip.
Should you stretch your palm out, the gap between the tip of the thumb and the little finger is named a hand span.
The size of a picket stick could be measured with hand span.
What number of hand spans is your desk? __________
What number of hand spans is the blackboard in your class? __________
What number of hand spans is your trainer’s desk? __________
There have been different items too akin to foot span, stride, and many others.
The size of the ground within the classroom could be measured
with footspan.
Is your trainer’s stride the identical as yours?
The reply is not any! It’s because stride of all folks will not be the identical as some folks have longer toes and legs than others. So, we have to have one uniform unit for measuring size.
Measuring
Lengths Utilizing Objects:
We will additionally use completely different objects like clips, pencils, ribbons, matchsticks to measure the size.
Utilizing Matchsticks
How lengthy is that this straw? Allow us to measure its size utilizing matchsticks.
This straw is 7 matchsticks lengthy.
How lengthy is that this eraser?
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This eraser is _____ matchsticks lengthy. |
How lengthy is that this portray brush?
 |
This portray brush is _____ matchsticks lengthy. |
Measure the size of the next utilizing matchsticks.
(a) Your pencil is _____ matchsticks lengthy.
(b) Your pencilbox is _____ lengthy.
(c) Your pocket book is _____ matchsticks lengthy.
(d) Your ruler is _____ matchsticks lengthy.
Utilizing Paper Clips
The size of the pencil is about 8 paper clips.
The size of the pencil field is about 9 clips.
Utilizing Pencils
The size of the desk field is about 4 pencils.
Utilizing Ribbons
The size of the cricket bat is about 2 ribbons.
Questions and Solutions on Measurement of Size:
1. Ring the longer object.
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(i) |
 |
(ii) |
 |
2. What are the lengths of those rulers? Use a paper clip to measure the size. Then fill within the blanks.
(i) It’s about __________ paper clips lengthy.
(ii) It’s about __________ paper clips lengthy.
Reply:
2. (i) 6
(ii) 3
3. Tick the right reply.
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(i) Which is the longest pencil? |
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(ii) Which is the shortest pencil? |
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Reply:
3. (i) C
(ii) A
4. Tick the right reply.
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(i) Which is the tallest pencil? |
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(ii) Which is the shortest pencil? |
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Reply:
4. (i) B
(ii) A
5. Fill within the blanks.
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(i) |
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The e book is ___ eraser lengthy. |
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(ii) |
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The desk is ___ cubits lengthy. |
Reply:
5. (i) 3
(ii) 3
6. Which a part of your physique will you employ to measure the next objects?
(i) Guide
(ii) Desk
(iii) Classroom
7. Have a look at the image and fill within the blanks:
(i) The size of the blackboard is about ………… handspans.
(ii) The size of matrasses is about …………footspan.
Reply:
7. (i) 7
(ii) 10
(iii) 6
8. Write T for true and F for false.
(i) Cubic is shorter than handspan.
(ii) Footspan is shorter than stride.
Reply:
8. (i) F
(ii) T
Questions and Solutions on Non-Normal Unit of Size:
9. Have a look at the image and fill within the blanks:
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(i) The ribbon is about ………… clips lengthy. |
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(ii) The pencil is about ………… clips lengthy. |
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(iii) The toothbrush is about ………… clips lengthy. |
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(iv) The e book is about ………… clips lengthy. |
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Reply:
9. (i) 8
(ii) 4
(iii) 6
(iv) 3
10. Have a look at the image and fill within the blanks:
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(i) |
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The size of the desk is about ………… cubits. |
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(ii) |
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The size of the carpet is about ………… footspans. |
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(iii) |
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The size of the tile within the classroom is about ………… footspans. |
Reply:
10. (i) 2
(ii) 4
(iii) 2
11. Match the issues with the physique components that you’ll select to measure the size.
Reply:
11. (a) → (iii)
(b) → (i)
(c) → (ii)
12. Measure these objects at house and fill within the blanks.
(i)
Size of my couch is about __________ ribbons.
(ii)
Size of my desk is about __________ ribbons.
(iii)
Size of my bottle is about __________ handspan.
(iv)
Size of my shorts is about __________ cubit.
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