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!

Sixth graders draw triangles and quadrilaterals with Geometer's Sketchpad before finding the sum of the angles in both geometric shapes. Next, they discover the relationship between the number of sides and the sum of the angles. They complete a worksheet as an assessment.

10 Views
5 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