1. Math 3-3: Warm-up

2. Math 3-3: The Real Number System
Objective: How to identify and classify numbers in the real number system.

3. Vocabulary
irrational number – a real number that cannot be expressed as a decimal that terminates or repeats.
real number – the set of rational numbers together with the set of irrational numbers.
REVIEW: rational number – any number that can be expressed as a fraction.

4. terminating decimals/
Numbers Diagram
Real Numbers
Rational Numbers
½, 4, 0.25, -13
Irrational Numbers …
Integers
{…-1,0,1,…}
Fractions/
terminating decimals/
repeating decimals
that are not integers
Whole Numbers
{0,1,2,3,…}
Natural Numbers
{1,2,3,…}

5. Name Sets of Numbers

6. Graphing Real Numbers Estimate to the nearest tenth
Graph on number line

7. Estimate and Graph

8. Comparing Real Numbers
Write each number as a decimal
Compare the decimal values

9. Compare

10. Assignment
3-3 PS (a)
3-3 E (ec)
Quiz: Lessons 1-3 – 10/5