Discuss Question 8 in the Student Activity Book. Ask students to share the line they drew for Question 8C with at least 2 other pairs of students.
- Did you sketch your line in the same place?
- Where does Grace's line meet the vertical axis? (0,120)
- What does that 120 mean? (The starting mass of the sandwich)
- Where does Grace's line meet the horizontal axis? (Responses will vary. In order to meet the criteria that Grace takes bigger bites than Nila, she should take less than 6 bites to finish her sandwich, so her line would cross the horizontal axis at less than 6).
Assign Check-In: Questions 9–10 in the Student Activity Book.
Use Check-in: Questions 9–10 in the Student Activity Book and the corresponding Feedback Box to assess student's abilities to meet the following Expectations:
- Identify and extend patterns for decreasing functions [E1].
- Represent patterns and functions using words, tables, and graphs [E2].
- Solve problems involving mass [E4].
- Draw best-fit lines for decreasing functions [E10].
- Make predictions and generalizations using a graph [E12].
