This game is great fun for the Spanish I classroom that has learned the topics of direct object pronouns and the personal "a". This is a good review in the form of a whole class tic tac toe game. First divide your classroom into two teams. Next project the game on to your whiteboard with the projector. Don't use your screen. Let the students write directly on the whiteboard. One person from each team is up. If he or she can correctly answer the question, the team can decide where to write their X or O. The slide content changes with each new question, but the tic tac toe game doesn't. It's always in the same place. The students love the competitive nature of the game while practicing their grammar skills.