Have students create their own games and crossword puzzles as review tools. Students should be asked to rewrite vocabulary definitions in their own words or to find synonyms. To play a “Jeopardy!” style game, have students from different classes create index cards with answers on one side and the correct term, event, or procedure name on the other. Exchange the cards with a different class and use these as the material for the game. For crossword puzzle activities, keep in mind that these are challenging to create and may require work out of class to complete. The actual creation of the materials serves as a review tool. The game itself can simply be fun.