Instructional Activity# Stacking Cups

Lesson 5. Unit 3. Grade 8 Open Up Resources

Open Up Resources10 min(s)

This Instructional Activity is a part of the Lesson 5, Unit 3, Grade 8. In this task, students are presented with a situation that leads to a linear relationship that is not proportional because there is a non-zero starting amount. By trying to answer the question, "How many cups are needed to get to a height of 50 cm?" the students explore the rate of change, which is the increase per cup after the first cup.