Page 81 - Maths Skills - 7

Rational Numbers 79

Activity

Objective: To represent a given rational number on a number line.

Pre-Requisite Knowledge: 1. Concept of rational numbers.
2. Concept of a number line.

Materials Required: A ruler, strips of paper, a pencil and an eraser

Preparation for the Activity: Teacher may prepare small strips of paper with any rational number written on it
according to the number of students in the class. Place all the strips in a box and
ask the students to pick any one strip from it and represent the given rational
number on a number line.

Procedure: 1. Pick a strip with a rational number written on it from the box. Let the rational number be −2 .
−5
2. Write the value of numerator and denominator in the observation table.

3. Write the given rational number in the standard form and then represent it on a number line as
shown below.
Q

–2 –1 0 1 2

2
Here, point Q represents .
5

4. Repeat step 1 to step 3 for other rational numbers and complete the observation table.

Observations:
Rational Number Numerator Denominator Standard form

−2 –2 –5 2
−5 5