Geometry Session 3: Polygons

In this session, you will use puzzles and a classification game to explore polygons. You will play with the definitions of various polygons to begin to internalize their meaning. You will also begin to look at mathematical definitions more formally and explore how a term can have different, but equivalent, definitions.

Part A:
Hidden Polygons

Part B:
Classifying Polygons

Part C:
Definitions and Proof

Homework

For information on required and/or optional materials for this session see Note 1.

In this session, you will learn to do the following:
•	Broaden your thinking about polygons
•	Classify polygons according to some of their features
•	Understand how to divide polygons into triangles and the implications of that
•	Begin to understand mathematical definitions


	Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.


	New in This Session:
	concave polygon convex polygon irregular polygon isosceles trapezoid kite line symmetry/reflection symmetry parallelogram		polygon quadrilateral rectangle regular polygon rhombus square trapezoid Venn diagram vertex

Next > Part A: Hidden Polygons

Session 3: Index | Notes | Solutions | Video