1. Topics: Number Sense Additive Composition Inversion
Unit 1
Topics:
Number Sense
Additive Composition
Inversion

2. IT: The Caterpillar

3. 3 6 19 4 18 16 20 17 2 10 9 13 12 11 14
start 8 7 15 5 1 3 6 19 4 18 16 20 17 2 10 9 13 12 11 14
start 8 7 15 5 1

4. IT: Ladybird Game

6. IT: Butterfly 5p Game

8. How many spots did you fill?
Unit 1
Answer sheet 2
Example
Coins for each go
How many spots did you fill? 2 2

10. Teacher demonstration of inversion with blocks

11. IT: Inversion 1

12. ? 6 6 +4 -4

13. ? 4 5 +6 -7

14. ? 9 9 +5 -5

15. ? 9 8 +5 -4

16. ? 6 7 +4 -5

17. Now, the blocks added and subtracted will no longer be in a different colour

18. ? 7 8 +3 -4

19. ? 7 7 +5 -5

20. ? 10 9 +5 -4

21. ? 7 8 +5 -6

22. ? 3 4 +6 -7

23. Well done!