We like using Tinkercad to teach basic 3D modeling to students with no background in 3D modeling. Great platform. It’s also created by Autodesk that creates professional tools for professionals so it’s a good intro all-in-all. (from the website: Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding. It’s used by teachers, kids, hobbyists, and designers to imagine, design, and make anything!)
Tinkercad (Free 3D Modeling Tool)
