Start a 10-Day Free Trial to Unlock the Full Review

#### Why Lesson Planet?

**Find**quality lesson planning resources, fast!

**Share**& remix collections to collaborate.

**Organize**your curriculum with collections. Easy!

**Have**time to be more creative & energetic with your students!

Students explore the concept of exterior angle sums. In this exterior angle sums lesson, students construct triangles and quadrilaterals using Cabri Jr. Students measure the exterior angles of the triangles and quadrilaterals and find the sum.

3 Views
9 Downloads

Resource Details

#### Be the first to comment

Join Lesson Planet Community, our free teacher discussion forum, to share ideas about this resource, and more.

Join the Conversation