3D Graphing Anyone?

Well the most recent updates about the GeoMapApp is that it is working well. It is easy to use, I fixed the vertical exaggeration problem and the program will be released after David Thesenga and I present at NSTA (until then the code is available for your entertainment). Also, I rewrote the program so you could make 3D graphs 3D printable. As a math teacher, this project suddenly got a whole lot more exciting. Not only are 3D graphs hard to teach in upper maths, but think of the possibilities for Algebra. What if each student could print out a different slope and compare them to the others, how different would their understanding of slope be if they could touch it? It is available here. Check it out: