* https://en.wikipedia.org/wiki/Scratch_(programming_language)
* https://scratch.mit.edu
* https://en.wikipedia.org/wiki/Squeak
Both my kids did try out Scratch, and would create a lot of funny things with it on rainy days. It is well thought through and easy to learn.
* https://en.wikipedia.org/wiki/Scratch_(programming_language)
* https://scratch.mit.edu
* https://en.wikipedia.org/wiki/Squeak