Question

MATHS LAB ACTIVITY
Objective: To learn about rational numbers and its various operations pictorically
Material required: Art sheet, coloured papers, sketch pens, glue, protractor, compass, scissors
C
B
A
Step 1: Choose two rational numbers. For example,
2 3
and
9 5
Step 2: Draw two circles on the art sheet.
Step 3: Represent the first rational number in the first circle.
To do this, first divide 360° by 9. What you get is 40°.
From the centre of the circle draw a radius, say OA.
Using a protractor, draw ZAOB = 40°. Then draw
ZBOC = 40°. In this manner, divide the circle into 9
equal sectors.
Now paste coloured paper in two sectors.
2
This is the representation of rational number
9
Step 4: Repeat step 3 for the second rational number.
Step 5: Show the basic operation (+,-, *, --) at the bottom of the art sheet.
2 3. 3 2 2 3 2 3
9 5 5 9² 9 5' 9 5
Step 6: Show the result of various operations pictorically as explained in steps 2 and 3.
Now do this activity yourself, choosing any two rational numbers and have fun.
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Answer 1

Answer:

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