Welcome to steemit.
Here are a couple of my posts for your consideration that are educational:
https://steemit.com/education/@point/light-simple-and-strange-simple-math-to-play-with-win-1-sbd
Welcome to steemit.
Here are a couple of my posts for your consideration that are educational:
https://steemit.com/education/@point/light-simple-and-strange-simple-math-to-play-with-win-1-sbd