Assign Check-In: Questions 13–18 in the Student Guide to summarize the lesson. Students can use fraction circle pieces or another method to solve the problems. Remind students to include number sentences in their solutions. When students have finished, have volunteers share some of their solutions with the class.
- How can you estimate the answer to the problem?
- Model the problem using display circle pieces.
- Write a number sentence to match the problem.
- Show how you solved the problem.
- How is Question 16B different from 16C? (In 16B, we add fractions with like denominators. In 16C, we add fourths and thirds.)
- Show how to use equivalent fractions with common denominators to solve the problems in Questions 16E and 16F. (For 16E, 2/6 + 5/6 + 2/6 = 9/6 or 13/6. For 16F, 6/12 + 4/12 + 3/12 = 13/12 or 11/12.)
Use Check-In: Questions 13–18 on the Add Fractions pages of the Student Guide and the corresponding Feedback Box in the Teacher Guide to assess students' abilities to find equivalent fractions using area models and multiplication and division strategies [E4]; add fractions including those with unlike denominators [E7]; use visual models and equations to represent the solution for word problems involving adding fractions [E8]; use benchmark fractions to estimate sums [E9]; find a strategy [MPE2], and show work [MPE5].
