Tic tac toe is a classic game. It can be played virtually anywhere and on anything, from a bar napkin to a computer screen to a chic wooden set. When you’re the first one up, there is a simple ...

Eight senators are supposed to get $500K each, but the House emphatically said 'no' NTSB releases new images of UPS plane moments before crash 'This is a structural goods recession': U.S. freight ...

Up to equivalence, there aren’t nine distinct opening moves. There are only three. If it isn’t immediately clear to you what “up to equivalence” means here, I urge you to try and figure it out ...

I was playing tic-tac-toe with a friend the other day. Even saying that sounds weird. Tic-tac-toe is an objectively bad game that is solved. Given perfect play, both players will tie without fail.

This article is part of the collection: What Personalized Learning Looks Like Across the Country: The 2017 Fifty States Project. “If we want to see teachers embrace student choice,” educator and ...