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Say “ Ahh-gebra ”

Say “ Ahh-gebra ”. By Gail Warren and Andy Derer Based on the original by Nancy Hall. Divide your sticks into 3 equal groups. Marking Your Sticks. FIRST group mark THREE RED dots. SECOND group mark FOUR BLUE dots. THIRD group mark FIVE GREEN dots. Questions, Questions, Questions.

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Say “ Ahh-gebra ”

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  1. Say “Ahh-gebra” By Gail Warren and Andy Derer Based on the original by Nancy Hall

  2. Divide your sticks into 3 equal groups

  3. Marking Your Sticks • FIRST group mark THREE REDdots. • SECOND group mark FOUR BLUE dots. • THIRD group mark FIVE GREEN dots.

  4. Questions, Questions, Questions • What is the largest number you can make with the green sticks? • What is the largest number you can make with the blue sticks? • What is the largest number you can make with the red sticks?

  5. 3 5 7 9 4 6 8 10 Questions Use your sticks to make the following:

  6. What is the largest possible number using all the sticks?

  7. How much will 3 red sticks equal? Can we write a math sentence telling how much 3 red sticks equal?

  8. 3 red sticksis 9

  9. How much will three green sticks equal? Can we write a math sentence telling us how much 3 green sticks equals?

  10. 3 green sticksis 15

  11. What letter could we substitute forred? r

  12. We will use b to mean blue. b

  13. We will use g to mean green. g

  14. There’s a Shortcut! 3 green sticks can be written as 3 x g And we can get SHORTER! 3 x g can be written as 3g

  15. 3 green sticksis 15 A shorter way is 3 x g = 15 Even shorter is 3g = 15

  16. So what is 3b 1b 4b 2b equal to?

  17. A math sentence that contains an equal sign is called an EQUATION

  18. A letter that represents a number is called a Variable

  19. What is the variable that stands for 4? b

  20. What is the variable that stands for 3? r

  21. What is the variable that stands for 5? g

  22. Can you figure out this problem using a variable? 15 is ______. And the equation is…

  23. 3g = 15

  24. It’s time to practice…

  25. Let’s Wrap Up

  26. What is a math sentence that contains an equals sign called? What is a letter that stands for a number called? Equation Variable Say “Ahh-gebra”

  27. Thank you! Good-Bye

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