We love Scratch and think it's offers a brilliant way for kids to develop some pretty sophisticated coding skills. I use it at school with the children I teach, at the Code Club that I volunteer at, at our Coder Dojo, and at home with my kids.
Scratch Day website where you can find events near you. Lots of events are free and open for parents to sign up their children.
We celebrate Scratch day with our Coder Dojo group each year.
If you're running a Scratch day event, or just celebrating at home then you'll find lots of resources on the website. There's even a Brazil Olympics 2016 themed race game.
If you haven't already tried them then it's also worth checking out the Scratch Hour of Code 2015 resources for more ideas.
- See also: Gifts for kids who code in Scratch
Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab. See http://scratch.mit.edu.