2. Do Now 9/13/10  Take out HW from Wednesday. Text page 8, #32-40, 49-51 all Text page 8, #32-40, 49-51 all  Copy HW in your planner. Text p. 12-13, #14-32 evens & 36 Text p. 12-13, #14-32 evens & 36 Quiz Sections 1.1 & 1.2 Wednesday Quiz Sections 1.1 & 1.2 Wednesday  Be ready to copy Problem of the Week #1.

3. Homework Text page 8, #32-40, 49-51 all  32). 72m  33). q – 1  34). r + 13  35). n + 9.4  36). s ÷ 3  37). n ÷ 41  38). p – 31  39). $32  40). a) t + i b) A: 70; B: 60; C: 80 c) 46 points  49). 12x  50). y ÷ 16  51). a) table b) 4r b) 4r c) 200 – 4r c) 200 – 4r d) 50 rentals d) 50 rentals DVDsCost Amount left 14196 28192 312188 416184

4. Objective  SWBAT use powers to describe repeated multiplication

5. POWER the result of repeated multiplication of the same factor 3 4 BASE EXPONENT shows the number of times the base is multiplied Section 1.2 “Powers and Exponents” the factor (number) that is being multiplied

6. POWER the result of repeated multiplication of the same factor 3 4 BASE EXPONENT Repeated Multiplication (Factors) Words three to the three to the fourth power

7. Write the product using an exponent. Then find the value. 1). 2 · 2 · 2 · 2 · 2 · 2 2). (0.2)(0.2)(0.2) SOLUTIONS

8. Evaluate the expression. 1. x 2 when x = 8 1. x 2 = 8 2 = 64 = (2.5)(2.5)(2.5) = 15.625 2. k 3 = 2.5 3 2. k 3 when k = 2.5 SOLUTIONS Use the button on your calculator for squares of numbers. Use the button on your calculator for all other powers. = 8 x 8 3. d when d = 6 5 3. d = 6 55 = 6 x 6 x 6 x 6 x 6 = 7776

9. Guided Practice  Text p. 12, #1-11 all Homework  Text p. 12-13, #14-32 evens & 36

10. 24

11. WAR!!! Using your boards evaluate the powers as fast as possible. If your number is called … you are at WAR!