1. GeoGebra: http://www.geogebra.org/cms/
2. GeoGebra has similarities to Geometer’s Sketchpad. It is a FREE geometry software that allows students to plot points, lines and curves on a graph. It accepts commands to create parallel and perpendicular lines as well as measuring angles and segment length. The fact that it is free and downloadable on the web makes it a great tool that students can use both in and out of the classroom.
3. The difficulty level of this program is relatively low. Basic features can be learned in a 10 – 15 minute lesson. An entire 120 minute class period would allow students to be exposed to all of the features the program has to offer as well as practice some of those skills.
4. There are a variety of applications for this software to be used in the classroom. Its best applications would be in Algebra and Geometry. It is a great tool for solving systems of equations graphically and it’s excellent at showing spacial features of different geometric shapes.
5. This software is definitely worth learning. The multiple uses in the classroom combined with the ease of learning and use make it a very valuable math tool.
I really enjoy Geogebra. I learned how to use it the semester before my student teaching in a math education class, and then ended up using it for a Geometry project about straight-edge and compass constructions. I actually had an easier time learning this software than Sketchpad- definitely a good software to be familiar with!
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