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Do Now 9/9/09  Take out HW from last night. Text page 7-9, #12-48 multiples of 4 Text page 7-9, #12-48 multiples of 4  Copy HW in your planner. Text.

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Presentation on theme: "Do Now 9/9/09  Take out HW from last night. Text page 7-9, #12-48 multiples of 4 Text page 7-9, #12-48 multiples of 4  Copy HW in your planner. Text."— Presentation transcript:

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2 Do Now 9/9/09  Take out HW from last night. Text page 7-9, #12-48 multiples of 4 Text page 7-9, #12-48 multiples of 4  Copy HW in your planner. Text p. 12-13, #14-32 evens & 36 Text p. 12-13, #14-32 evens & 36  In your journal answer the following. If 26 = L. of the A. means 26 letters of the alphabet, how many of the following “equations” can you translate? If 26 = L. of the A. means 26 letters of the alphabet, how many of the following “equations” can you translate? 24 = H in a D. 90 = D. in a R.A. 18 = H. on the G.C. 8 = P. in the S.S. 1000 = W. that a P. is W. Hours in a Day Degrees in a Right Angle Holes on the Golf Course Planets in the Solar System Words that a Picture is Worth

3 Homework Text p. 7-9, #12-52 multiples of 4  12). 9  16). 120  20). 6  24). 32  28). 18  32). 72m  36). s ÷ 3  40). a) t + i b) A: 70; B: 60; C: 80 c) 46 points  44). 6  48). 8.75  52). a) p + 3t b) Blanda: 1948, Lowery: 1711, Johnson: 1736; c) Lowery, Johnson, Blanda

4 Objective  SWBAT use powers to describe repeated multiplication

5 POWER the result of repeated multiplication of the same factor 2 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!

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