1. Continuing the Conversation

2. Minilessons for Addition and Subtraction

3. A warm–up mental math string 92 + 39 99 + 32 139 + 94 134 + 99 199 + 34 129 + 97 What strategy does this string support? What big ideas underlie this strategy?

5. Small Group Discussions What strategies would you expect to see? How would you represent them?

6. The Double Number Line 92 + 39 = 99 + 32

7. 90 + 30 + 9 + 2 30 + 90 + 2 + 9

8. The Landscape of Learning

9. Let’s go to a classroom… Cdrom, minilesson folder (3 rd ), first page video clips 18, 19, and 20

10. The Landscape of Learning

11. Back to the classroom… second page video clips 3, 5, 6 #3 (3 on the top, 5 on the bottom) #5 (2 on the top, 6 on the bottom) #6 (is there another way the kids could trick me?)

12. Grade 2 43 + 10 43 + 20 43 + 19 68 + 23 39 + 54 What’s the focus of the string? A) compensation B) splitting C) jumps of tens and adjusting D) moving to a landmark number

13. Grade 2 50 + 50 49 + 51 25 + 25 26 + 25 32 + 28 49 + 53 What’s the focus of the string? A) compensation B) splitting C) doubles +/- D) moving to a landmark number

14. Grade 2-3 192-40 192-43 378-39 247 – 29 371 - 19 What’s the focus of the string? A) constant difference B) splitting C) doubles +/- D) taking jumps of ten backwards and adjusting

15. Back to the classroom… sixth page 192-40 video clips 76, 77

16. Back to the classroom… Seventh page video clip 79

17. Grade 2-3 192-40 192-43 378-39 247 – 29 371 - 19 Here’s the string again. Would you continue with the 4 th problem?

18. How would you finish the string?

19. 192-40 192-43 378-39 378-40 371-19

20. Grade 2-3 146-12 272-14 283-275 (clip 83) Here’s the first part of a string that Michael does on another day.

21. What conversation would you have?

23. Have fun with minilessons….