This Learning Resources play cash register is such a great way to teach my kids about money! Once the novelty of opening and closing the drawer wore off, we were able to begin discussing how to count money and which denominations were worth more. My 6 year old has known how to identify certain coins for a while, but she is now understanding how many pennies it takes to make a dollar, etc. Not only can she count the money, she can also count back change! My 3 year old loves playing with his sister, and she loves being his teacher. I could have never predicted how many hours they would each spend playing with this toy.