Lesson 4

Buildings and Plans

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

Ask students to share their strategies and solutions. Have 200 Charts, coins, and desk number lines readily available.

  1. Yes; 10 + 10 + 10 + 10 = 40¢
  2. Yes; since an eraser (8¢) costs less than a pencil (10¢), four erasers will be less than 40¢.
  3. No; 17 + 17 + 17 = 51¢

J. School Supplies

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You have 50¢.

  1. Do you have enough money to buy four pencils? Show or tell how you know.
  2. Can you buy 4 of any other item on the list? Show or tell how you know.
  3. Can you buy 3 stickers? Show or tell your strategy.