Here is another fun, silent game which involves organizational skills and working together as a team.
The game leader sets a time limit (say 2 minutes) and tells everyone to SILENTLY arrange themselves in a line according to shoe size (smallest to biggest). You can also do it by age, height, etc.
The object is for the children to quietly work together for an overall goal -- within a specific time frame. Those who can't find their place in the line, when the time is up, are out of the game.
