1.) Do Now: September 26, 2012 Pages ) Update Table of Contents 3.) Take out your HW 4.)Then copy this table on page 31 of your notebook. 1 st Law: Product of a Power (multiplication) Laws of Exponents 31 2 nd Law: Quotient of a Power (division)

Activator 1 st and 2 nd Vocabulary Word Sort

Vocab Word Sort Answers Base Number A number that is to be raised to a power Exponent A number used to indicate how many times to multiply the base by itself Expanded form A way to write a number or expression so that each place value of a number is multiplied by it's place value. 10 x 10 x 10 x 10 Exponential form Is a more compact way to write a number or expression. 10 4

Activator What if you had to tell someone to multiply the following number: 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 Do you think it will be an easier way to tell them?

EQ: How do I use the properties of exponents to extend the meaning beyond counting number exponents? Standard: MCC8.EE.1 Know and apply the properties of integer exponents to generate equivalent numerical expressions.

Exponents power base exponent

The Laws of Exponents: Exponential and Expanded forms: The exponent of a power indicates how many times the base multiply itself. EXPONENTIAL FORM Expanded Form = 125 Standard Form

The Laws of Exponents: 1 st Law: Product of a Power: If the BASES are the SAME and… If the operation between the bases is MULTIPLICATION Then we KEEP THE BASE and ADD EXPONENTS.

The Laws of Exponents: 1 st Law: Product of a Power:

We Do, You do… We Do: You Do:

The Laws of Exponents: 2 nd Law: Quotient of a Power: If the BASES are the SAME and… If the operation between the bases is DIVISION Then we KEEP THE BASE and SUBTRACT EXPONENTS.

The Laws of Exponents: 2 nd Law: Quotient of a Power

We Do, You do… We Do: You Do:

Student Practic: White Boards  Students will complete practice problems over the 1 st and 2 nd Law of Exponents by competing in a two teams.  Students will have to work problems on the board as the teacher calls out each problem.  The team with the most points at the end of the game (20 mins) will be the winner!

Practice… 1.)

Practice… 2.) We Do:

Practice… 3.)

Practice… 4.)

Homework : You will have 10 problems that consist of using the properties of exponents to extend the meaning beyond counting-number exponents from the 1 st and 2 nd Laws of Exponents. Closure : 3-2-1….