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.

$Non-standard Units of Length$

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.

$Measured with Cubits$

Note: Cubit is a measurement from elbow to fingertip.

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

$Measure of a Wooden Stick$

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

$Measured with Footspan$

Measuring Lengths Using Objects:

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

$Measuring Lengths Using Objects$

The length of the pencil is about 8 paper clips.

$Length of the Pencil$

The length of the pencil box is about 9 clips.

$Length of the Pencil Box$

The length of the desk box is about 4 pencils.

$Length of a Desk$

The length of the cricket bat is about 2 ribbons.

$Measuring Length Using Ribbons$

Questions and Answers on Measurement of Length:

1. Tick the correct answer.

$Longest and Shortest$

(i) Which is the longest pencil?	$Correct Answer$
(ii) Which is the shortest pencil?	$Correct Answer$

Answer:

1. (i) C

(ii) A

2. Tick the correct answer.

$Tallest and Shortest$

(i) Which is the tallest pencil?	$Correct Answer$
(ii) Which is the shortest pencil?	$Correct Answer$

Answer:

2. (i) B

(ii) A

3. Fill in the blanks.

(i)

$Book Length$

The book is ___ eraser long.

(ii)

$Length of a Table$

The table is ___ cubits long.

Answer:

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:

$Length of the Blackboard$

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

$Length of the Mattresses$

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

$Length of the Book$

Answer:

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.

Answer:

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.	$Length of a Ribbon$
(ii) The pencil is about ………… clips long.	$Measurement of a Pencil$
(iii) The toothbrush is about ………… clips long.	$Length of a Toothbrush$
(iv) The book is about ………… clips long.	$Measurement of a Book$

Answer:

7. (i) 8

(ii) 4

(iii) 6

(iv) 3

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

(i)	$Length of the Table$	The length of the table is about ………… cubits.
(ii)	$Length of a Carpet$	The length of the carpet is about ………… footspans.
(iii)	$Length of a Tile$	The length of the tile in the classroom is about ………… footspans.

Answer:

8. (i) 2

(ii) 4

(iii) 2

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

$Measuring Lengths Using Body Parts$

Answer:

9. (a) → (iii)

(b) → (i)

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

(i)

$Length of a Sofa$

Length of my sofa is about __________ ribbons.

(ii)

$Measure of a Table$

Length of my table is about __________ ribbons.

(iii)

$Length of a Bottle$

Length of my bottle is about __________ handspan.

(iv)

$Length of a Shorts$

Length of my bottle is about __________ cubit.

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