Last week was the annual meeting of NCTM (National Council of Teachers of Mathematics) here in Washington, DC. I gave a talk with Jon Choate (geometry teacher, author, overall genius) entitled "Exploring 3D Geometry with Google SketchUp 7." Our room could accommodate 450 but we expected maybe 100-150 to show up. Twenty minutes before we began, the room was almost entirely full, and was completely full when we got started. (Fabulous turnout, but we ran out of handouts!)
By all accounts, the talk was a huge success. Most of the teachers hadn't seen SketchUp before, and there were audible "oohs" and "ahhs" when we showed how to make Hirschhorn tilings, icosahedrons, cuboctahedrons, etc. Here's one example we showed, demonstrating how section planes and a cone can be combined to show various 2D conic sections:
Click the image below to find this conic section SketchUp model in the 3D Warehouse:
I've placed all of the model used in our NCTM talk in the 3D Warehouse; click here to see the entire collection. Most of these models have scene tabs across the top, which you can click to see the progression of the model. Enjoy!
Anyone can create anything in 3D! www.3dvinci.net