1. Bellwork 8/19
Do the Mixed Review on page 13 (2-16 ev).

2. To be able to evaluate expressions containing exponents.
Today’s Objective
To be able to evaluate expressions containing exponents.

3. The exponent is sometimes referred to as the power
Vocabulary
Exponent 46
Base
The exponent is sometimes referred to as the power

4. What is the meaning of 46 ?
46 means to multiply the base 4 by itself 6 times.

5. The meaning of the exponent:
1.) 46 = 444444
2.) 43 = 444
3.) 41 = 4
4.) 40 = ?

6. The meaning of the exponent:
If 8/4 = 2, then we can say that 23/ 22 = 21. So if 4/4 = 1,we can say that 22/ 22 = 20, therefore 20 must EQUAL 1.
4.) 40 = 1
5.) 4-1 = 1/4

7. As the exponent gets smaller, what do you notice about the answer?
Fill - in the chart
5.) 20 =
6.) 2-1 =
7.) 2-2 = 1/4
8.) 2-3 =
1.) 24 =
2.) 23 = 8
3.) = 4
4.) 21 =
As the exponent gets smaller, what do you notice about the answer?

8. Fill - in the chart
5.) 20 = 1
6.) 2-1 = 1/2
7.) 2-2 = 1/4
8.) 2-3 = 1/8
1.) 24 = 16
2.) 23 = 8
3.) 22 = 4
4.) 21 = 2

9. Evaluate the following expressions with exponents
1.) n3 when n =4
43 = 444 = 64
43 = 64

10. Evaluate the following expressions with exponents
2.) 15 + x2 when x = 5
15 + 55
= 40

11. Evaluate the following expressions with exponents
3.) (3a + 6b)2 when a = 1 & b = 2
(3(1) + 6(2))2
(3 + 12)2
(15)2
225

12. Evaluate the following expressions with exponents
4.) 2x3 and (2x)3 when x = 4
2(43) and (2•4)3
2(64) and (8)3
and 512

13. Closure
1.) What’s the difference between an expression and an equation?
2.) What the difference between a term and a factor?

14. Closure - Name the following
What’s this?
What’s this? 2 4

15. Closure - Name the following
3x + 2
1.) is 3 a factor or term?
2.) What is the 2 called?
3.) Is 3x a factor or a term?
4.) Is 3x + 2 an expression or an equation?

16. Do worksheet 1.3 (1-28) Homework page 17 (8 - 30 ev) and (36 - 40)
Classwork
Do worksheet 1.3 (1-28)
Homework page 17
( ev) and ( )