I am a licensed short term substitute teacher available through Teachers on Call. I believe that 3d modeling and printing are most useful to children and teenagers because they are the most time rich members of society. 3d printing is resource cheap but time expensive. I am available a to teach subjects including the basics of 3d printing, modeling and scanning to your students for up to a two weeks. I think this is ideal for geometry teachers but science and art teachers are also welcome to request my substitute teaching services. I dropped out of a PhD program in 2013 and considered getting a license to teach science full time. But then I thought of a way to get back into teaching that requires less money than getting my license.