1. Activator:
Put the following numbers into groups: Be able to explain why they are grouped together.
2.35, -7, 385, 5 2/3, …, …, …,

2. Real #
Rational #
Integers
Irrational #
Whole #
Natural #

3. Real # Rational # Integers
A rational number is a number that can be written as a simple fraction, or a decimal that terminates or repeats
Integers
whole # Plus negative whole #
Irrational #
Whole #
Any number that cannot be written in fraction form: √2
Natural # Plus 0
Natural #
The whole numbers from 1 upwards: 1, 2, 3, and so on ...

4. Rational Numbers

5. Practice
Tell if the number is rational or irrational:

6. Summarizer:
Using the numbers from the activator classify them as rational or irrational.
2.35, -7, 385, 5 2/3, …, …, …,

8. Tic-Tac-Think:Rational Numbers Choose one task from each column to answer completely.
Name the following number as many ways using your diagram:
852
Which of the two is rational
… or
List 5 numbers that are integers:
√2 or -2.22
List 5 numbers that are natural numbers
-3 ½
or 22/7
List 5 numbers that whole numbers
Tic-Tac-Think:Rational Numbers Choose one task from each column to answer completely.
Name the following number as many ways using your diagram:
852
Which of the two is rational
… or
List 5 numbers that are integers:
√2 or -2.22
List 5 numbers that are natural numbers
-3 ½
or 22/7
List 5 numbers that whole numbers