We played a trading ( regrouping) game to review the concept of regrouping. We began trading in 3 Town with the mayor as the trader. Everything in 3 town came in threes and the mayor would only trade if the student got three of any one color.
Basically, a player rolls the dice and asks the mayor for that number of YELLOW ( ones) chips to place on their board. Every time they roll, they must start with YELLOW chips. When a player gets 3 yellow chips they can trade in for 1 blue ( tens). When they get 3 blue, they can trade for 1 green ( hundreds) , and then 3 green for 1 red. You are the winner if you get to red first.
We then repeated this game trading on 5 getting to red to win.
We then began using a place value chart with a 10 frame to trade and learned the word 'regroup'.
This game prepared us for regrouping and carrying over in multi digit addition and subtraction and was a nice review after our summer break.