Geometry Session 1: What Is Geometry?

In this session, you will use mathematical communication and geometric thinking to solve problems. You will use paper folding as a construction tool because of its visual and kinesthetic properties. (Paper folding is more intuitive and taps into geometric reasoning more easily than traditional straightedge and compass constructions.) The session ends with some reflection on the basic objects of geometry and the difference between an ideal mathematical object and its representation.

Part A:
Quick Images

Part B:
Building from Directions

Part C:
Folding Paper

Part D:
Basic Objects

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:
•	Use geometric thinking to solve visualization problems
•	Use mathematical language to express your ideas and to understand the ideas of others
•	Construct the basic objects of geometry


	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:
			altitude angle bisector concurrent line line segment median midline perpendicular bisector plane point ray

Next > Part A: Quick Images

Session 1: Index | Notes | Solutions | Video