Instructional Activity# Sorting Rectangles

Lesson 1. Unit 2. Grade 8 Open Up Resources

Open Up Resources20 min(s)

This Instructional Activity is a part of the Lesson 1, Unit 2, Grade 8. This activity recalls work from grade 7 on scaled copies, purposefully arranging a set of scaled copies to prepare students to understand the process of dilation. If one rectangle is a scaled copy of another, then they can be arranged so that the diagonal of the larger rectangle contains the diagonal of the smaller rectangle. Students will arrange a set of rectangles into groups with shared diagonals and examine the scale factors relating the rectangles.