Lesson 3

Filling Graduated Cylinders

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
X

Use DPP item F to provide practice with strategies for subtraction facts related to the addition facts in Group C. Encourage students to share solution strategies. Have number lines readily available.

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

Ongoing Assessment

Use DPP item F 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].




F. More Subtraction Facts Practice

Add one penny to each coin jar.

  1. − 8 = 2
  2. 11 − = 4
  3. 10 − = 4
  4. − 2 = 9
  5. 9 − = 3
  6. 10 − 7 =
  7. − 1 = 9
  8. 9 − 7 =
  1. Show or tell how Question F helps you solve Question H.



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