EXPONENTS (1.4)

by:Tonya Petty

QUICK WRITE

Write whatever you know about exponents on a sheet of paper. (Take 3 minutes.)

PARTNER UP

Discuss your findings with your partner. Then bring back to whole group.

OBJECTIVE(strategic

teaching agenda) The students will be able

to use powers and exponents in expression.

Alabama Course of Study: 6:1

VOCABULARYwrite on back of Washing Machine GO.

tells the number of times the base is used as a factor; also called an index/indicesOR exponential

notationNumber

written as a base number with an exponents (numbers expressed using exponents)

Numbers expressed using exponents

Bonjour my friends!! This

expression is called a

orexpone

ntial notatio

n

Evaluating powers (write on GO)

1. Identify and read the Power or Product.

3 to second power or 3 squared

2. Identify the base and exponent.

3. What does the power or product mean?

mulitply 3 times itself 2 times.

4. Evaluate the Power or Product.

3 x 3 = 9

baseexponent

POINTS TO REMEMBER(Write on the bottom of your GO.)

1. When no exponent is given, it is understood to be 1.

2. Any number raised to the power of 1 will always equal the number itself.

3. Any number raised to the power of 0 (except for 0) will always equal 1.

Write 45 as a product. Then find the value of the product.1. A Power; Four to the fifth power.2. 4 is the base; 5 is the exponent.3. The power means 4 times itself 5 times4. 4x4x4x4x4 =

EXAMPLE 1

Write 3 x 3 x 3 x 3 using an exponent. Then find the value of the power.

EXAMPLE 2

1. A Product; 3x3x3x3.2. 3 is the base; 4 is the exponent.3. The product means multiple 3 times itself 4 times.4. 3x3x3x3

now

= 3 x 3 x 3 x 3 81

1

2 = 252

62525 x 25

EXAMPLE 3

EXAMPLE 4

now

with a partner

Get with your

9 o’clock buddy

EX5: 2x2x2x2EX6: 6x6x6

Write each product using an exponent. Then find the value of the power.

Now….Get with your

6 o’clock buddy

Write each power as a product. Then find the value of the product.

EX7. 26

EX8. 37

now

1) 46

2) 9 x 9

3) 43

4) 11 x 11 x 11

5) 41 =

6) 40 =

1) 46 = 4•4•4•4•4•4 = 4096

2) 9 x 9 = 92 = 81

3) 43 = 4 • 4 • 4 = 64

4) 11 x 11 x 11= 113 = 1,331

5) 41 = 4

6) 40 = ?

Evaluate each power or product…..

References Edhelper.com APTPlus.org Alabama Learning Exchange