Lesson 2

Building Plans in Cubeland

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

Use DPP item C to practice the subtraction facts related to the addition facts in Group B.

Encourage students to look for patterns and describe their strategies.

  1. 0
  2. 0
  3. 6
  4. 2
  5. 1
  6. 5
  7. 1
  8. 3
  9. 1
  10. 7
  11. 1
  1. Possible strategy: Count back 2.

Ongoing Assessment

Use DPP item C to assess students' fluency with the subtraction facts related to the addition facts in Group B [E10] and their abilities to determine the unknown number in an addition or subtraction sentence for the facts in Group B [E11].

See the Letter Home for targeted practice ideas.

C. Subtraction Practice

  1. 3 − 3 =
  2. 4 − 4 =
  3. 8 − 2 =
  4. 5 = 7 −
  5. 5 − = 4
  6. = 6 − 1
  7. 6 − 5 =
  8. 8 − = 5
  9. = 7 − 6
  10. 8 − 1 =
  11. 9 − = 8
  1. Show or tell how you solved Question D.