This unique "wheel" material is one that you will not find anywhere else. I developed it during a Montessori conference when I found that there was little available from the vendors for teaching money concepts in a truly hands-on and conceptual way. I commissioned a wood prototype, which I used in my classroom for many years. It was one of the most popular materials in my classroom, and it has been amazing to see the speed at which students gain not only comfort with coins, but also skills in