Art of Illusion is a free, open source, 3D modelling and rendering studio. Many of its capabilities rival those found in commercial programs. Highlights include subdivision surface based modelling tools, skeleton based animation, and a graphical language for designing procedural textures and materials.
Art of Illusion will run on any computer that supports Java 5 or later. This includes Windows, macOS and Linux.
Art of Illusion is an excellent application to use in schools because it's simple to understand interface making getting started really easy.
Art of Illusion and it's plugins are licensed under the GPL 2.0 open source license or later at your choice . This means that you are free to download, edit, and use the source code for what ever you want!
the latest offical stable release is 3.0.3