Lesson 9

Workshop: Reasoning from Known Facts

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X
  1. image
    2 + 2 =  4
  2. image
    4 +  2 = 6
  3. image
     2 + 6 = 8
  4. image
    1 +  0 + 7 = 8
  5. 4 pockets; Possible number sentence: 6 − 2 =  4 or 2 +  4 = 6

Ongoing Assessment

Use DPP item HH to assess students' fluency with the addition facts [E7] and abilities to find the unknown number in an addition sentence relating three whole numbers for the facts in Groups A–B [E8].

HH. Pockets

Solve and write a number sentence.

  1. image

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  2. image

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  3. image

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  4. image





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  1. Jack is wearing clothes with 6 pockets and Jill is wearing clothes with 2 pockets. How many more pockets is Jack wearing?

    Number sentence _______________________________________________