MAKE FOUR TEAMS. THE STUDENTS IN EACH TEAM GIVE THEMSELVES LETTERS...

2. Make four teams. The students in each team give themselves letters of the alphabet from A onwards (for however many students there are in the team). Tell them to do this at random and not to sequence the letters in the order they are sitting. For example, if there are seven students in a team they will have the letters A–G. In the class as a whole, there will be four students with the letter A, four with the letter B and so on.