Aim : To understand the accuracy in the use of body parts for measurement.
What is required?
A ruler, a measuring tape.
What to do?
With the help of a ruler, measure the length of various parts of your body like the arm or the palm, which are normally used for measurement.

Repeat the measurements for your friend or for a younger brother and sister also. You can use a measuring tape also for this activity.

Compare the measurements.
What do you observe?
You will find that there is a difference in the measurement of your body parts with those of your friends.