I have another variation of Bingo.Actually this is based on a British game show Hexegons. You can play the game with either squares or hexegons.
Simply make a 4 by 4 grid on the board. Randomly place letters in each box.Put the class into two teams and have them play rocks scissors paper. The team to win gets to choose a letter. For example A ask a question that begins with the letter A. For example name the coldest state in the U.S. The team to answer the question Alaska. Claims that square and places their icon in the square. The first team to claim an entire row without being bloked by their opponent wins the game.