Lesson 9

Workshop: Reasoning from Known Facts

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

Have number lines and connecting cubes readily available.

  1. 3¢; 6¢ +  3 = 9¢ or 9¢ − 6¢ =  3
  2. 14¢; 5¢ + 9¢ = 14¢
  3. whale card and monkey card; 5¢ + 6¢ = 11¢
  4. Possible response: I counted back from 9¢ to 6¢ and counted 3 hops back.

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EE. Trading Cards

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  1. How much more is a puppy card than a monkey card?


    Number sentence ____________________________________
  2. Mike wants to buy a whale card and a puppy card. How much money will he need to buy both cards?


    Number sentence ____________________________________
  3. Troy spent 11 cents to buy two cards. What two cards did he buy? Explain how you know.


    Number sentence ____________________________________
  4. Show or tell how to solve Question 1.


    Number sentence ____________________________________


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