I used this as a fun review game for 1st graders. The students would be set up in teams and each team would have a white board, a dry erase marker and a Kleenex. Teams would have to collaborate to come up with an answer. The answer would be put on the white board and students would signal they are ready by giving a 'thumbs up' sign. Once all teams had given the 'thumbs up' sign, I would order 'boards up' and would keep score.