2. COMMUTATIVE PROPERTY: pumpkins bats

3. To commute means to travel… (like when people commute to work…or take a commuter train)

4. This does NOT work with subtraction (let’s see why)

5. This does NOT work with division either (let’s see why)

6. ASSOCIATIVE PROPERTY:

7. Who you associate with does not matter…. (the whole group is still the same)

8. This does NOT work with subtraction (let’s see why)

9. This does NOT work with division either (let’s see why)

10. IDENTITY PROPERTY:

11. The identity of the number stays the same…(just like if you put on a mask for Halloween, your identity stays the same…you are still the same person) SHOW ME YOUR I.D.

12. Let’s try to identify some math properties… GET YOUR RESPONSE CARDS READY

13. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 5 + 0 = 5

14. IDENTITY :)

15. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 3 + 4 = 4 + 3

16. COMMUTATIVE

17. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 9 x 5 = 5 x 9

18. COMMUTATIVE

19. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? (5+3)+2 = 5+(3+2)

20. ASSOCIATIVE

21. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 4 x 3 = 3 x 4

22. COMMUTATIVE

23. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? (3 x 8) x 6 = 3 x (8 x 6)

24. ASSOCIATIVE

25. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 5 x 4 = 4 x 5

26. COMMUTATIVE

27. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 7 x 1 = 7

28. IDENTITY. \____/

29. Now, let’s try it with letters…

30. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? a + b = b + a

31. COMMUTATIVE

32. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? a x 1 = a

33. IDENTITY

34. ASSOCIATIVE? COMMUTATIVE? or IDENTITY? a + (b + c) = (a + b) + c

35. ASSOCIATIVE

36. The associative property only works with… a)addition and multiplication b)addition and subtraction c)division and multiplication

37. The commutative property only works with… a)addition and subtraction b)division and multiplication c)addition and multiplication

38. The identity property only works with… a)addition and subtraction b)addition and multiplication c)division and multiplication

39. WHAT IS THE SAME FOR ALL 3 OF THESE PROPERTIES?

40. THEY ALL ONLY WORK FOR ADDITION AND MULTIPLICATION.

41. END OF SLIDE SHOW

42. Exit Slip ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 1. 4 + 3 = 3 + 4 2. 8 x 1 = 8 3. (3 + 1) + 7 = 3 + (1 + 7) Write in box: A C I NAME ______________________

43. FLASHBACK: ASSOCIATIVE? COMMUTATIVE? or IDENTITY? 1. 4 + 3 = 3 + 4 2. 8 x 1 = 8 3. 6 + 0 = 6 4. (3 + 1) + 7 = 3 + (1 + 7) 5. a + b = b + a write: A C I