This is a comprehensive lesson plan I wrote up a while back, based on the trial-and-error way by which I learned 3D printing. It is my entry in the Formlabs Innovate and Educate Challenge, but also a template I'd like to share with the 3D printing and educational communities at large. The curriculum draws from sequential, experienced-based learning, using printed models I've designed as well as drawn from the larger community (because why try to reinvent the wheel?), and takes its time introducing topics - allowing students to think about what they're seeing and try to draw they're own conclusions. It is still very much a living document and can very easily be tailored to more specifically meet the needs of any educator interested in implementing all or part of it.