G8

(^) Copyright © Swun Math Grade 8 Unit 1 Lesson 2 C TE

Structured Guided Practice

(A/B Partners Practice)

(^)
Directions: Determine if the number is rational or irrational. Justify your answer.

1. (^) √ 16
   Solution:
   Rational number; 16 is a
   perfect square
   The √ 16 is 4 and 4 is an
   integer, a whole number,
   a natural number and it
   can be written in a ratio
   4/1.


2. 
   

2

3

Solution:

Rational number; the

decimal form of 23 is0.

All repeating decimals

are rational numbers.

3. – 3

Solution:

Rational number; –3 is an

integer

It can be written in the

form of a ratio: -^3

1

4. 0.262626262626...

Solution:

Rational number; it is a

repeating decimal.

All repeating decimals

are rational.

Considerations:

• As students are working with partners, have them justify why the number is rational or
  irrational.


• Add the above examples to the circle map/poster you created.