This nine question electronic Tic Tac Toe is such a fun way to review. No matter what grade you teach your students will love the celebrity cast, which includes football star, Cam Newton, singing stars, Taylor Swift and Justin Bieber, LeBron James, Beyoncé, Michael Phelps and Simone Biles. To make it more exciting add the X's and O's live during the game. The animation and music keeps it fun. Be sure to use PowerPoint 2013 or later, macro enabled.