Lesson 1

The Hour and Half Hour

Est. Class Sessions: 1–2

Daily Practice and Problems

Teacher Notes
X

Use this item to practice the addition facts in Group D with sums to ten.

  1. 3 + 3 = 6
  2. 3 + 4 = 7
  3. 5 + 5 = 10
  4. 5 + 4 = 9
  5. 6 + 7 = 13
  6. Possible response: I know that the first row of a ten frame is 5, so I know that I have a full row and one less than a full row or one less than a full ten frame. So 5 + 4 = 9.

B. Ten Frames and Doubles

Solve and write a number sentence for each.

  6. Tell how you can solve Question D without counting.