Earlier this summer someone shared a link describing Ultimate Tic Tac Toe (I apologize but I cannot remember who shared the link). The post was on the Math with Bad Drawings blog which you can access here. I had never seen it before (I am obviously living under a rock…) but I immediately loved it. I filed it away on my computer. Somewhere. I went looking for it last night and couldn’t remember how I saved it and so I went searching online. I found the original post, and I found two other sites that I like.
The first is a digital version of the game. I would definitely have my students play their own games, but I love the idea of opening it up with a class game. You can access the digital version here. The second is a game on the Spin Master website called Tic Tac Two. In this version the tic tac toe grid is constantly changing placement. I have already made a few classroom purchases this summer, but I may have to add this to the repertoire!