1. Number Talks Building Numerical Reasoning
Leann M. Cervantes

2. Purpose
As a result of this session, participants will develop enough confidence to begin implementation of Number Talks in their classroom

3. Ice Breaker

4. Do now
Tell me everything you know about: 20

5. AGENDA Do Now What is a Number Talk? 5 Key Components Signals
Teacher Questioning and Talk Moves
Whole Group Practice
Exit Ticket

6. Solve Mentally…no paper or pencil!
45 x 12

7. What is a Number Talk?
A short, on-going daily routine of meaningful practice of mental math computation fluency

8. Guidelines
10 to 15 minutes every day
Everyday
Whole Group
Away from "normal" desk

9. Talk Moves
Revoicing: So what you are saying is…
Repeating: Can you tell me what J said in your own words?
Reasoning: Do you agree with J? Why or why not?
Adding On: Can you help or continue what J is saying?
Wait Time: Give them time to think!

10. 5 Key Components of Number Talks
Classroom environment
Discussions
Teacher roles
Mental math role
Purposeful computation (making 10, friendly numbers, double and half, break apart (decompose), number lines)

11. Signals
Thinking
I have an answer
I have a strategy, 2,3
I agree

12. Practice

13. Subitizing
rapid, accurate and confident judgment of number performed for small number of items

15. Signal

17. Signal

18. Making 10

19. 9 + 1

20. 3 + 7

21. Friendly Numbers

22. 19 + 2
26 + 5
49 + 8

24. Break Apart

25. 6 x 6
9 x 4
13 x 5
25 x 12

26. 9 x 30
4 x 2 x 8
2 x 25 x 4

27. Doubling and Halving

28. 8 x 125
4 x 250
2 x 500

29. 36 x 5
19 x 10
9 x 20

30. Practice
Making tens
Dots
Doubling/halving
Friendly numbers
Break apart

31. Talk with a partner:
Why is mental math important? How does Number talks fit in? How can we fit it in our daily math routine?

32. Exit ticket Solve and scribe using only mental math: 28 + 47
76 – 48 (timeline)
32 x 2 (double and half)