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Jessica D’Agostino Lesson plan Grades 8 - 9

EXPONENTS!. 2. 2. Jessica D’Agostino Lesson plan Grades 8 - 9. Table of Contents. What is an exponent? How do we write them? Writing Practice! Addition of Exponents 5. Subtraction of Exponents 6. Multiplication of Exponents 7. More Practice, Worksheet, Games!.

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Jessica D’Agostino Lesson plan Grades 8 - 9

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  1. EXPONENTS! 2 2 Jessica D’Agostino Lesson plan Grades 8 - 9

  2. Table of Contents What is an exponent? How do we write them? Writing Practice! Addition of Exponents 5. Subtraction of Exponents 6. Multiplication of Exponents 7. More Practice, Worksheet, Games!

  3. What are exponents? expression that indicates the number of times the number or expression is to be multiplied by itself EXPONENT VARIABLE Table of Contents Go Back

  4. Back to the basics… 3 * 3 * 3 = 2 * 2 = 9 * 9 = 27 4 81 Table of Contents

  5. How else can we write this? 3 * 3 * 3 = 27 = 2 * 2 = 4 = 9 * 9 = 81 = 3³ 2² 9² Table of Contents

  6. Now it’s your turn! How can we write 5 * 5 ? 5 5² 5⁴ Table of Contents

  7. CORRECT!

  8. TRY AGAIN

  9. How can we write 4³ ? 4 4 * 4 4 * 4 * 4

  10. CORRECT

  11. TRY AGAIN

  12. ADDITION! Table of Contents Same Base! you have to have the same base to add exponents! Same Exponent! you have to have the same exponent! X² X² 2X²

  13. Examples! a. 6² + 6² = 6*6 + 6*6 = 36 + 36 = 72 = 2(6²) 7³ + 5² = 7*7*7 + 5*5 = 343 + 25 = 368 X² + X³ = X³ + X² X³ + 3X³ = 4X³ Table of Contents

  14. SUBTRACTION! The same rules apply as addition! 2x² 5x² 3x² Table of Contents

  15. What is 5X³ + 3X⁴ + 2X⁴? 10X ¹¹ 5X³ + 5X⁸ 5X³ + 5X⁴ Table of Contents

  16. Correct!

  17. Try Again

  18. MULTIPLICATION! (x3)(x4) = (xxx)(xxxx)           = xxxxxxx          = x7 Same Base! you have to have the same base in order to combine the exponents. Multiplication is keeping the base and adding the exponents! Table of Contents

  19. What is (x⁴)(x⁵)? X²⁰ X⁷ X⁹

  20. Correct !

  21. Try Again

  22. Good Job! Now it is time to practice on your own.. Please print this worksheet, finish it, and bring it in to class next time! Review Game! Additional Help! Table of Contents

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