I divide my class into any size groups. I make up a list of twenty or more questions on the subject being studied. I call on groups sequentially to answer one question and set a time limit. If the group answers correctly, a member of the group gets to shoot a 'basket' from a designated place in the classroom. If the basket is made, the team receives a point which is written on the board. I use a sponge ball and wastebasket. Using this method, I have found that the information is shared with everyone and test scores show improvement.