Beginner 3D Printer/Design Guidelines

I teach Middle School students about 3D printing about twice a year for our Shark Tank and MakerWeek presentations. Most students, especially when it comes to 3D printing, are going to be visual learners, so I developed a quick set of guides for the students to follow while designing things in Tinkercad! Students learn to take overhangs, bridging, supports, brim, and print fans into account while designing objects in 3 dimensions!