Resources for teaching Rhino to middle school students?

Hi everyone,

I run a middle school fab lab, and am wrapping up our first year in operation. I've been using things like Tinkercad and 123D Design for 3D design for printing, and Inkscape for 2D design for laser / vinyl cutting. I've been a bit disappointed with these software packages, and would love to be able to use Rhino as our end all 2D & 3D design package. 

That being said, I would love some resources for teaching Rhino to MS students. I've experimented with different approaches to teaching design software, from guided lectures, to step by step guides, to using online videos, none of which I've been happy with. I would love to see what methods you all have been using, and what kinds of projects you have been doing with your students.

Thank you for your help!