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21 st
Activity Century #Experiential Learning
Skills

Measure the height and weight of any 6 students in your class and complete the table
given below.

Name of the Student Height (in m and cm) Weight (in kg and g)

Answer the following:

1. How many children are taller than 1 metre? _____________
2. How many children are lighter than 30 kg? _____________

3. What is the height of the tallest child? _____________

4. How much shorter are you than the tallest child in your class? _____________
5. What is the weight of the heaviest child? _____________

MeTrIC SySTeM

In the previous class, we
have learnt about the
units for measuring length,
mass and capacity. Metre
(m), gram (g), and litre

(L) are the base units of
length, mass and capacity
respectively.

There are also bigger and
smaller units made from
these. These are formed by
using prefixes with the base
units. The prefixes and their

values are shown alongside.

This system of measurement is known as the metric system of measurement.

150 Mathematics 4