1. 10.2 Real Numbers
Objective: The objective is for the students to learn the difference between a rational and irrational number

2. Rational: ratio, repeats/terminates
Information
Rational: ratio, repeats/terminates
Ex: .75
Ex:
Irrational: non-ratio, doesn’t repeat, terminate
Most common:
Non perfect square roots
∏ = 3.14
Real numbers: all rational/irrational numbers Whole Number: Positive numbers (no decimals) 0,1,2,3…… Integers: positive or negative whole numbers. …-3, -2, -1, 0, 1, 2, ..

3. Classify Real numbers as Rat., whole, integer, or ir. t,st
1/ √4 √21/3
√16/ √8/2 √16

4. Compare Real numbers
√2 ___ 9/5 √7 ___ 8/3
-3/2 ___ -√2 -3√2 ___ -4.2

5. Compare Real numbers-st
√15 ___ 15/4 4 ___ √32/2
√1/4 ___ 1/4 -√8 ___ -10/3

6. Ordering Real Numbers
12/11, √1.1, 7/3, √10/3
4.2, √17, 17/4, -4.6

7. Ordering Real Numbers
2/3, √5/9, .60, .75, √7/9
9/5, √31, √55/2, 28/5, 0

8. Evaluating Expressions
1 and 2 step Square Roots
Divide Coefficient (if needed)
Square root both sides
a2 = 9
x2 = 81
5y2 = 110
2j2 = 18

9. Evaluating Expressions-st
m2 = 144 c2 = 100
3y2 = 300 2c2 = 50

10. Questions/Comments Workbook pg. 135
Wrap-up
Questions/Comments Workbook pg. 135