Beavers have to estimate when a minute is up.
Watch with second hand.
Beavers lie down on the Floor and cover their eyes. They then have to estimate when a minute is up and stand up when they think the time is up. The winner of the game is the one who got the closest to a minute. Blow the whistle to start the game and keep it going until all are on their feet.
This is a good game for getting them to calm down at the end of a busy meeting or if your meeting has gone quicker than anticipated.