1. Bell Ringer May 05, 2014 School Day 163 Daily Decimal (DD): 1.What is the 2 nd Semester to the remaining days in the school year as a decimal not rounded? 2. Find the value of Homework: Negative Exponents WS

2. Clear Target I will be able to explore the idea of negative exponents.

3. Let’s watch a video Powers

4. Explain what the exponent means? 5 3 = 5 * 5 * 5 = 125 10 2 = 10 * 10 = 100 8 4 = 8 * 8 * 8 * 8 = 4096

5. What do you think it means when an exponent is negative? 5 -3 = 10 -2 =

6. What does 2 -1 Mean? You cannot leave an exponent negative because there is no way to express it’s meaning. You must make it positive !

7. Zero and Negative Exponents Zero and negative exponents are too easy. DEFINITION OF NEGATIVE EXPONENTS a -n is the reciprocal of a n. where a is not equal to 0.

8. Simplify. A negative exponent is an inverse! Flip the number over to make the exponent positive!

9. Follow the Pattern! 10 1 = 10 2 = 10 3 = 10 4 = 10 5 = 100 1,000 10,000 100,000 1010 10 1 10 = 0.1 10 -2 1 1 10 2 1 100 = 0.01 10 -3 1 10 3 1 1000 = 0.001

10. Zero and Negative Exponents Zero and negative exponents are too easy. DEFINITION OF ZERO EXPONENTS A nonzero number to the zero power has the value of ONE. ANY NUMBER (except zero!) RAISED TO THE ZERO POWER IS ONE!!!! a 0 = 1, where a is not equal to 0. 5 0 = 1 97 0 = 1 1,000,000 0 = 1 1,567 0 = 1 765 0 = 1 8 0 = 1100 0 = 1 -22 0 = 1 -4 0 = 1-9 0 = 1 1987 0 = 1 22.879 0 = 1 300 0 = 1

11. Composition Notebook Go to the Table of Contents Label Page 78: “Zero & Negative Exponents”

12. What did we learn today? I will be able to explore the idea of negative exponents.

13. Exit Slip a. 3 -4 =b. 4 0 = c. 9 -2 =d. 100 0 = e. What effect does a negative exponent have on a number?

14. Scoot Activity 2 Minutes: to work independently on the problems 1 Minute: to discuss with your partner You should discuss: Your answers Your solution paths Why your answers are the same/different based on your solution paths Scoot!! Left partners move forward, Right partners move backward.