Dynamic geometry software like Geometer's Sketchpad allows you to construct and manipulate geometric figures. Such software can help you discover relationships among geometric figures, search for invariants (properties that do not change), and clarify the beginning stages of geometric proof. In this session, you will begin to use the tools of Geometer's Sketchpad to construct geometric figures and explore their properties.
If you are not familiar with The Geometer's Sketchpad software, or would like a refresher, go to the following tutorial.
This session assumes you can do the following with Geometer's Sketchpad: construct points and segments; construct points on objects; create midpoints; construct lines that are parallel or perpendicular to given lines; measure distances and angles; and perform calculations on your measurements. If not, or if you would like a refresher, please go to the tutorial.