Understand relationship between metre and centimetre

UNIT 4

MEASUREMENTS

Understand relationship between metre and centimetre.

Introduction

Children can measure their foot size and find out the slipper size. Or sleeve size of their shirt, then children go around find out whose sleeve is the shortest and whose is the longest. Or leg size and find out whose pant/trouser is the longest. Or shoulder measurement of their friends.

Kavitha accompanied her friends to the festival shop. They all got a lot of stuff. They came back home and then talked about them.

Kavitha : I bought a ribbon. Mala what did you buy?

Mala : I bought a cricket bat. Mary, please show your toy.

Mary : I bought a toy train.

Sharmila : See friends. I have a beautiful toy car

Banu : My favouite toy lorry was very attractive

Kavitha : All the toys are very nice. Let us measure our toys. Which is the longest among them?

Let’s measure the length of toys and ribbon.

Kavitha : measures her Ribbon.

Mala : measures her Toy bat.

Mary measures her Toy train.

Teacher can help the children to use the ruler. Whether it should begin from zero or 1? Also tell why do we measure from zero.

Sharmila : measures her Toy car

Banu : measures her Toy lorry.

Centimetre can be written as “cm”

We use scale to measure small length. Play ground, Classroom height are measured by tape.

Activity

Ask the children to measure the following things and complete the table given below.

Children can you measure the tip of the following things by using the ruler?

Yes, the measurement between 0 and 1 is 0.5.

10 millimetre = 1 centimetre

100 centimetre = 1 metre

1000m = 1 Kilometre

1000 metre = 1 kilometre

1 mile = 1.6 kilometre

Think it..

How can you measure the distance between villupuram and cuddalore?

Group Activity

Ask the children to measure the length of the following things.

a. Black board

b. Cupboard

c. Table

d. Wallclock

e. Classroom