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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.