NCERT Book Class 3 Maths Chapter 4 Long And Short

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Long and Short
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4
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Lali is selling things at her father's shop.
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A farmer comes to buy rope.
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Can you give me 7
arms of rope?
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Here is your 7
arms of rope.
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But this is only
6 arms long.
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Why don't you measure
your arm with this rope
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and take 7 times of that
length?
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So, the farmer measures his arm with
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the rope and Lali gives him 7 times
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that much rope.
Measure your arm and your mother's
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arm. What is the difference?
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Children should be encouraged to look around and see how lengths of different things are measured
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in different ways using local or non-standard units. For example, rope, garlands or cloth may be
sold by the cubit, handspan, fingers, etc. They also need to do activities of measuring lengths
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(and distances) with their own body parts.
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