Which One Doesn't Belong: Basic Geometry

This lesson involves the geometry content of 4th grade including: right acute and obtuse angles; triangle classification, parallel and perpendicular lines, lines of symmetry, and quadrilaterals. Specifically, the content is from Engage NY: A Story of Units 4th Grade Module 4. It can be taught any time at or after lesson #14. Special thanks to Christopher Danielson and the wodb.ca web site created by Mary Bourassa for inspiration.

By Allison Krasnow