Tinkercad is a really easy 3D CAD program to learn to use, the software has a simple interface and is based around building up a design by using 3D shapes from the library and combining them (by adding or subtracting shapes) to build your model.
Tinkercad is web based and teachers can set up an account and invite students via a join code. This allows students to access their designs out of school and also to share their designs with the global Tinkercad community.
We recommend Tinkercad for primary schools and initial secondary school projects as it is very easy to get started with, we have even had children in a nursery school in our community using Tinkercad with support. However although simple to learn, this does not limit the scope of the software to produce complex designs, so it can be used for all ages and ability levels. However as part of the Autodesk CAD software suite, it is relatively easy for students to progress from Tinkercad to Autodesk Fusion 360 (or Autodesk Inventor) as their skills and the complexity of their designs develop.
Another benefit of Tinkercad is that it has now evolved to incorporate “circuits” functionality. This allows students to design circuits, program micro-controllers and incorporate the electronics directly into their 3D designs.
Learn more about TinkerCAD Circuits