Venn is a game played on a computer by up to six teams in a classroom setting, and it is best projected to a screen for classroom competitions. Interactive whiteboards add to its coolness greatly, but aren't completely necessary.
The object is to drag the terms, concepts, statements, etc., to the proper place on the Venn diagram. Teachers can create the games using one, two, or three circles, adding their own terms, concepts, statements, etc. Terms can be placed in circles, between circles, in the center of three circles, or outside all the circles.
There is much flexibility in terms of number of times each team can place a term during their given time period, how much time each team is given, etc. This game will work with ANY grade level and ANY subject--even math.
Works on all Windows machines. Sorry, no Macs.