1 / 12

Today’s Plan: -Warm up -Exponents -Practice

9/3/10 Exponents. Entry Task

daquan-burch
Download Presentation

Today’s Plan: -Warm up -Exponents -Practice

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 9/3/10 Exponents Entry Task You have just installed a water pond in your backyard. You intend to place water lilies in the pond. According to the package a water lily doubles in size every day. From the time you install the first lily until the entire surface of the pond is covered will take 20 days. How long will it take for the pond to be half covered? 19 days Today’s Plan: -Warm up -Exponents -Practice Learning Target: -I will represent numbers using exponents.

  2. 9/3/10 Exponents Multiplication Symbols 3·2 (3)(2) Today’s Plan: -Warm up -Exponents -Practice Learning Target: -I will represent numbers using exponents.

  3. 2-1 Exponents Course 2 Simplify. 1.2 · 2 · 2 2. 10 · 10 · 10 · 10 3. 5 · 5 · 5 4. 1 · 1 · 1· 1 · 1· 1 · 1 8 10,000 125 1

  4. 2-1 Exponents Course 2 A DNA molecule makes a copy of itself by splitting in half. Each half becomes a molecule that is identical to the original. The molecules continue to split so that the two become four, the four become eight, and so on. Each time DNA copies itself, the number of molecules doubles. After four copies, the number of molecules is 2 · 2 · 2 · 2 = 16.

  5. 2-1 Exponents Course 2 This multiplication can also be written as a power, using a base and an exponent. The exponent tells how many times to use the baseas a factor. 4 2 Exponent Base “2 to the fourth power.”

  6. 2-1 Exponents Course 2 Additional Example 1: Evaluating Powers Find each value. A. 43 4 to the third power (or 4 cubed) 4 · 4 · 4 64 B. 72 7 to the second power (or 7 squared) 7 · 7 49

  7. 2-1 Exponents Course 2 Insert Lesson Title Here Try This: Example 1 Find each value. A. 33 B. 62 6 · 6 3 · 3 · 3 27 36

  8. 2-1 Exponents Course 2 Any number to the first power is equal to that number. 61 = 6 131 = 13 251 = 25 Any number to the zero power is equal to 1. 60 = 1 100 = 1 190 = 1

  9. 2-1 Exponents Course 2 On Monday, Erik tells 3 people a secret. The next day each of them tells 3 more people. If this pattern continues, how many people besides Erik will know the secret on Friday? Each day the number of people is 3 times greater. 3 · 3 · 3 · 3 · 3 = 35 = 243 On Friday 243 people besides Erik will know the secret.

  10. 2-1 Exponents Course 2 Insert Lesson Title Here Try This: Example 3 In a game, a contestant had a starting score of one point. She doubled her score every turn for four turns. Write her score after four turns as a power. Then find her score. After each turn, her point total is 2 times greater. 2 · 2 · 2 · 2 = 24 = 16 points

  11. 2-1 Exponents Course 2 Insert Lesson Title Here Find each value. 1. 73 3. 34 Write each number using an exponent and given base. 5. 125, base 5 6. 16, base 2 7. Find the volume of a cube if each side is 12 inches long. 343 2. 63 216 81 4. 85 32,768 53 24 1,728 in3

  12. 9/3/10 Exponents Assignment #1 Exponents: pg. 62 #10-21, 31 OR Challenge Assignment #1 Exponents: pg. 62 #36-45 Today’s Plan: -Warm up -Exponents -Practice Learning Target: -I will represent numbers using exponents.

More Related