First, students will learn what the triangle and trapezoid midsegment theorems are, and why they're true. Then students will learn what the proportionality theorem and its converse say, and why each is true.
Conclude by giving your students these challenges:
- Aba by NRICH
- 2018 Math Kangaroo Levels 7-8 Problem #25 by STEM4all
- 3 Rings by NRICH
- 1999 AMC 8, Problem 8
- 2001 AMC 8, Problem 7