1. Part-Part-Whole Fact Families

2. I can write 4 equations for a fact family. I can find the missing part in a fact family. Learning Targets

3. Two parts make a whole

4. This is how it looks on a number line 6 3 Whole 9

5. What are the addition equations? 6 3 Whole 9 Part Whole += +=

6. What are the addition equations? 6 3 Whole 9 Part Whole 6+3=9 3+6=9

7. BUT…

8. What if you are missing one part? ? Whole 9 6 What goes with 6 to make 9?

9. What if you are missing one part? ? Whole 9 6 Another way to say that is 6 + ? = 9

10. What if you are missing one part? ? Whole 9 6 9 - 6 = ? or

11. What is the subtraction equation? ? Whole 9 6 WholePart -=

12. What is the subtraction equation? ? Whole 9 6 WholePart 9-6=3

13. What if you are missing the other part? 3 Whole 9 ? What goes with 3 to make 9?

14. What if you are missing the other part? 3 Whole 9 ? Another way to say that is 3 + ? = 9

15. What if you are missing the other part? 3 Whole 9 ? 9 - 3 = ? or

16. What is the subtraction equation? WholePart -= 3 Whole 9 ?

17. What is the subtraction equation? WholePart 9-3=6 3 Whole 9 ?

18. This fact family has 4 equations What are they? Part Whole += += Part -= -= 6 3 Whole 9

19. This fact family has 4 equations What are they? 6 3 Whole 9 Part Whole 6+3=9 3+6=9 Part 9-6=3 9-3=6

20. Now you try it. 10? Whole 14 What is missing?

21. Now you try it. 10? Whole 14 What goes with 10 to make 14?

22. Now you try it. 10? Whole 14 10 + ? = 14 14 - 10 = ?

23. 104 Whole 14 What are the parts? What is the whole?

24. 104 Whole 14 What are the 4 equations? Part Whole += += Part -= -=

25. 104 Whole 14 What are the 4 equations? Part Whole 10+4=14 4+10=14 WholePart 14-4=10 14-10=4

26. Here’s another one. ? * * * 3 7 What is missing?

27. Here’s another one. ? * * * 3 7 What goes with 3 to make 7?

28. Here’s another one. ? * * * 3 7 3 + ? = 7 7 - 3 = ?

29. Here’s another one. * * 4 * * * 3 7 What are the parts? What is the whole?

30. What are the 4 equations? * * 4 * * * 3 7 Part Whole += += Part -= -=

31. What are the 4 equations? * * 4 * * * 3 7 Part Whole 4+3=7 3+4=7 Part 7-3=4 7-4=3