To be successful as a team, children learn to cooperate, be responsible for the letters they hold and help others. The normal classroom will work if the desks can be pushed to face each other but need some room to work and still be somewhat separated. One of the more desirable rules is quiet helpfulness. The quieter the teams are, the more points they gain. This also forces more leadership and more cooperation.
Natural leaders surface helping the group form the words.
Group cooperation becomes important and a reachable, seeable, profitable entity rather than some teacher's unimportant words. When it happens, a very important lesson is there to be worked with and through. Causes are usually related to some of the group's inability to work together as a team. As they, with the teacher's help, work through what happened and how the game may go better next time, they see the need for cooperating. They see the importance of a leader.