Scratch is created by MIT see: About scratch see also: Scratch in Practice
Intro, Commands, CT001, Draw a square, Draw a square cont., The Repeat Block, CT002, Fun with repeat, Variables, Using variables, Random numbers, Fun with random numbers, Challenge 001, Challenge 001 Help, Challenge 002, Challenge 002 Help, Challenge 003, Animate a GIF, Resources
You can login to scratch from this address: https://scratch.mit.edu/
Nothe these notes were created with an earler version of Scratch
The concepts are the same but the layout of Scratch has changed.
For example the Pen is now located under the Extensions section.
