Lesson 2

Reading Graduated Cylinders

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
X

Use DPP item C to practice strategies for the subtraction facts in Group C. Have number lines readily available.

  1.  6
  2.  6
  3.  2
  4. 11
  5.  6
  6.  3
  7.  7
  8. 10
  1. Possible strategy: I know 3 + 6 = 9, so 9 − 3 = 6.

Ongoing Assessment

Use DPP item C to assess students' fluency with the subtraction facts related to the addition facts in Group C [E9] and students' abilities to determine the unknown number in an addition or subtraction sentence relating three whole numbers for the facts in Group C [E10].

C. Subtraction Facts Practice

  1. 10 − 4 =
  2. 11 − 5 =
  3. 10 − = 8
  4. − 8 = 3
  5. 9 − 3 =
  6. 10 − = 7
  7. 11 − 4 =
  8. − 5 = 5
  1. Show or tell your strategy for solving Question E.



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