Final Cover - For Printing

Module 59

MEASURES OF AREA

1. Measures of area
   The measure of a plane region or the amount of surface which any object occupies is
   called the area of that object.

To enable the child to understand the concept of area better, ask the child to keep his

Braille slate on the table. On exploration, the child might be able to understand that

the slate is occupying a part of the surface of the table. Now the child can be

explained that the space occupied by the slate on the table is the area of the slate.

The unit of area must always be denoted as square units. That is if the side of an

object is given in terms of meter then the area of the object should be expressed in

terms of square meters.

Note : Areas of smaller objects such as the Braille slate, textbook can be expressed as

square centimeter (sq.cm) and for areas of larger regions such as tennis court,

football ground etc., the unit to be used is square meter (sq.m)

Land area is still larger and hence they are expressed in square meters or hectares.

100 sq. m = 1 are

100 are = 1 hectare

10000 sq.m = 1 hectare

Once the child is clear with the meaning of area, the method of finding the area of

different geometrical figures may be explained. While enabling the child to find out

the area of a surface, various symbols that are used in the formula must be explained