A Logo-inspired turtle that draws colorful pictures with snap-together visual programming blocks

Turtle Art, also known as Turtle Blocks, is an activity with a Logo-inspired graphical "turtle" that draws colorful art based on snap-together visual programming elements.
Its "low floor" provides an easy entry point for beginners.
It also has "high ceiling" programming, graphics, mathematics, and Computer Science features which will challenge the more adventurous student.