PUBLIC MARKS from knann with tags software & hs:math

GeoGebra is a free and multi-platform dynamic mathematics software for schools that joins geometry, algebra and calculus. It received several international awards including the European and German educational software awards. It is open sourced, can be web-based or installed locally. Very similar to Geometer's sketchpad.

Google has some free software that some Math Teachers may want to look at and use with their classes. The software is called SketchUp and it’s a simple but powerful tool for quickly and easily creating, viewing and modifying your 3D ideas.lick on a shape and push or pull it to create your desired 3D geometry. Experiment with color and texture directly on your model. Real-time shadow casting lets you see exactly where the sun falls as you model. Select from thousands of pre-drawn components to save time drawing. I was very impressed with the ease of use of the software along with the video tutorials and user guide that is on the site. It’s worth taking a look if you teach Geometry.