Students may decorate the front cover and keep it in their desk. During the school year, students are given fake classroom money, in the same allotments as real money, for good behaviour. You can buy fake money from a teaching store or make your own. I prefer to use the fake real money.
At the end of the month students can buy things from the class store with the money they have. They dont need to spend it every month. This activity teaches adding and subtracting with decimals; plus, money management.