Open Middle: Building Quadrilaterals
- Author:
- Deborah Ball, Tim Brzezinski
- Topic:
- Geometry
Ditch those worksheets! This book serves as a collection of digitally interactive Open Middle problems. Be sure to check out Open Middle's site: https://www.openmiddle.com/. This volume will continue to grow over time. This book also contains great resources from Steve Phelps and John Ulbright.