Dr. Alexey Root taught bughouse, from People, Places, Checkmates: Teaching Social Studies with Chess. Luckily, the number of children (24) was divisible by 4, allowing for six bughouse tables. After playing two games against the same team (switching who played who for the second game), each team took on a new team.
Not all games finished at the same pace, though. One set of teams was still on game one while the fastest team managed to play at five or six games against three different teams. After the chess sets and boards were put away, there was time for chess Simon Says, from The Living Chess Game: Fine Arts Activities for Kids 9-14.