# Measurement of Length

We can measure objects by comparing them with other objects like clips, ribbons, pencils or using our body parts for example handspan, foot, cubit and stride. These are non-standard units of length.

We sometime use our body parts like finger, hand, foot and forearm to measure length of smaller objects.

We see many things around us. Some are short in length like pencil, crayon or a toothbrush. Some objects are long like ladder, tree or buildings.

We have learnt to measure objects by using body parts like fingers, handspan, cubit and footspan. We can also compare length of two objects by using the body parts.

The length of the desk in classroom can be measured with cubits.

Note: Cubit is a measurement from elbow to fingertip.

The length of a wooden stick can be measured with hand span.

The length of the floor in the classroom can be measured with footspan.

Measuring Lengths Using Objects:

We can also use different objects like clips, pencils, ribbons to measure the length.

The length of the pencil is about 8 paper clips.

The length of the pencil box is about 9 clips.

The length of the desk box is about 4 pencils.

The length of the cricket bat is about 2 ribbons.

Questions and Answers on Measurement of Length:

 (i) Which is the longest pencil? (ii) Which is the shortest pencil? 1. (i) C

(ii) A

 (i) Which is the tallest pencil? (ii) Which is the shortest pencil? 2. (i) B

(ii) A

3. Fill in the blanks.

 (i) The book is ___ eraser long.
 (ii) The table is ___ cubits long.

3. (i) 3

(ii) 3

4. Which part of your body will you use to measure the following objects?

(i) Book

(ii) Table

(iii) Classroom

5. Look at the picture and fill in the blanks:

(i) The length of the blackboard is about ………… handspans.

(ii) The length of matrasses is about …………footspan.

5. (i) 7

(ii) 10

(iii) 6

6. Write T for true and F for false.

(i) Cubic is shorter than handspan.

(ii) Footspan is shorter than stride.

6. (i) F

(ii) T

Questions and Answers on Non-Standard Unit of Length:

7. Look at the picture and fill in the blanks:

 (i) The ribbon is about ………… clips long. (ii) The pencil is about ………… clips long. (iii) The toothbrush is about ………… clips long. (iv) The book is about ………… clips long.

7. (i) 8

(ii) 4

(iii) 6

(iv) 3

8. Look at the picture and fill in the blanks:

 (i) The length of the table is about ………… cubits. (ii) The length of the carpet is about ………… footspans. (iii) The length of the tile in the classroom is about ………… footspans.

8. (i) 2

(ii) 4

(iii) 2

9. Match the things with the body parts that you will choose to measure the length.

9. (a) → (iii)

(b) → (i)

(c) → (ii)

10. Measure these objects at home and fill in the blanks.

(i)

Length of my sofa is about __________ ribbons.

(ii)

Length of my table is about __________ ribbons.

(iii)

Length of my bottle is about __________ handspan.

(iv)

Length of my bottle is about __________ cubit.

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