My entry in the competition, the Android app Plato’s Playground, is now available for public testing. I wrote Plato’s Playground to show young children how cool math can be by teaching them how to count to 31 on one hand. In my experience, after they’ve learned how to do it, they get excited to show their friends.
Here’s the YouTube video showing it in action: https://youtu.be/G-yNqTe9woA. Kids can talk to the app and the app talks and writes back. Over 50 languages are supported.
Get Plato’s Playground from the Web at https://play.google.com/apps/testing/com.chiaramail.platosplayground or via your Android phone or tablet from https://play.google.com/store/apps/details?id=com.chiaramail.platosplayground
Counting in binary is the first of a planned series of topics.
Check it out and please let me know what you think or if you find any bugs.