But the best idea I saw all day was a way to help kids understand coin values. You can use unifix cubes and a hundreds board to really drive home the understanding that different coins have different values. What a great idea!
The firsties take turns pulling a stick out of the can and telling what the coin is and how much it is worth. If they pull out the button BANG! all of their sticks go back in the can. The first person to get 5 sticks without a BANG wins.