Basic Shapes. The project consists of an application on geometry that can be "shared" by any person, whether or not visual impairment and / or low vision.
Activity, Audio and Video, Presentation, Sample Scratch Project, Tool
With the ability in Scratch 2 to create your own custom blocks, I have put together a tutorial on how to implement recursion in Scratch 2. The tutorial comes in the form of a post on my blog.