This mini-unit teaches students how to get started with CAD using Onshape. Onshape is a free, browser-based CAD software that is a great alternative to Autodesk or Tinkercad. It offers the professional, parametric approach to CAD that Autodesk offers while allowing students to create 3D models from any device (Windows, Mac, ChromeOS, smart phone) connected to the internet.This introductory section is great for absolute beginners to CAD as well as those who have used other software in the past. I