Lesson 6

Rolling Along in Centimeters

Est. Class Sessions: 3–4

Daily Practice and Problems

Teacher Notes
X
  1. 13
  2. 9
  3. 12
  4. 2
  5. 14
  6. 12
  7. 11
  8. 13
  9. 7
  1. Possible strategy: I made a ten by splitting the 5 and adding it to the nine, so 10 + 4 = 14.
  2. Possible response: 8 is one less than 9 so the answer is one less or 13.

Ongoing Assessment

Use DPP item M to assess students' strategies with addition and abilities to relate three whole numbers for the facts in Group E [E11, 12].

M. Addition Facts Quiz: Group E

  1. = 3 + 10
  2. 4 + = 13
  3. 8 + 4 =
  4. 12 = 10 +
  5. 9 + 5 =
  6. = 9 + 3
  7. 10 + 1 =
  8. 8 + 5 =
  9. 5 + = 12
  1. Show or tell how you solved Question E.
  2. Show or tell how solving Question E can help you to solve H.