Instructional Activity# Up and Down with the Piccards

Lesson 12. Unit 5. Grade 7 Open Up Resources

Open Up Resources15 min(s)

This Instructional Activity is a part of the Lesson 12, Unit 5, Grade 7. This activity builds on students' previous work with proportional relationships, as well as their understanding of multiplying and dividing signed numbers, to model different historical scenarios involving ascent and descent, and students must explain their reasoning. While equations of the form y = kx are not technically proportional relationships if k is negative, students can still work with these equations.