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Say “ Ahh-gebra ”

Say “ Ahh-gebra ”. With Your Name. Original Work by Nancy Hall Modified by: Gail Warren and Andy Derer. 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.

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Say “ Ahh-gebra ”

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  1. Say “Ahh-gebra” With Your Name Original Work by Nancy Hall Modified by: Gail Warren and Andy Derer

  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 for red? 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 equal to?

  17. So what is 2b equal to?

  18. So what is 1b equal to?

  19. So what is 4b equal to?

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

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

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

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

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

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

  26. 3g = 15

  27. It’s time to practice…

  28. Let’s Wrap Up

  29. 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”

  30. Thank you!

  31. Good-Bye

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