Lesson 2

Counting by Fives

Est. Class Sessions: 2–3

Summarizing the Lesson

Ask students to complete Questions 1–3 on the Counting Coins page while you distribute the bags of pennies to partners for Question 4. This question asks students to find the total number of pennies. Display the small bag of 40 pennies you prepared and counted earlier to help students estimate the pennies in their bag.

Display the Math Practices page from the Reference section of the Student Activity Book. Focus students’ attention on Math Practices Expectation 2: Find a strategy.

  • What tools can you use to count the pennies? (ten frames, drawings, groups or piles, nickels)
  • What strategies? (skip count and count on, count all)
  • Are some strategies better? (Some are better because they are faster and easier to check.)

Remind students to use the available tools: ten frames, drawings, or nickels. There are ten frames on the back of the page.

When students have completed counting the pennies and writing or making a picture of their strategy, ask them to share strategies for counting their collection of pennies. For example, ask a student who used ten frames to organize his or her work to explain that method to the class. Then ask another student who used a different method to check the first student’s strategy using his or her method to see if they arrive at the same solution.

  • Explain how Linda counted her pennies. (Possible response: She put them in ten frames. Then she counted by fives, then the extras.)
  • Explain how Jerome counted his pennies. (Possible response: He put them in piles of ten and counted by ten. He then counted the pile of three.)
  • How are their strategies alike? (Possible responses: They both got the same count. They both made groups to skip count.)
  • How are their strategies different? (Possible responses: Linda counted by fives and she used ten frames. Jerome counted by tens and he used piles.)
  • Which strategy would you use? Why? (Possible responses: I’d use the ten frames, because they help me not get confused; Counting by tens goes faster; I can count by fives better, so I would do it Linda’s way.)

Use the Counting Coins pages in the Student Activity Book and the corresponding Feedback Box Master to assess students’ abilities to group and count objects by fives [E1]; skip count by fives and count on to find the value of a set of coins [E2]; read and write numbers to 50 [E3]; represent quantities with pennies, coins, ten frames, and symbols [E4, E5]; and find a strategy [MPE2].

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