BlueJ and Greenfoot
Educational game development environment designed to teach programming
Educational computer programming environment using Haskell
A collection of interactive educational exercises
Lumina is a visual game creation environment for building 3D games.
Molecular viewer and prototyping framework
An environment to develop games based on a rectangular board
Puzzle game demonstrating whats so hard about binary integer factoring
Interactive communication boards for people with severe disabilities.
It allows you to teach/learn concepts visually