It has been interesting to show Stamp Game to children and adults who have been in a Montessori environment, and to those who haven’t. For those who know the physical “Stamp Game” the app is completely intuitive and essentially requires no explanation to operate. For those who don’t know the material, we will provide help and links to explanations, but still hope that it will be clear. The material is so beautiful and wonderfully bridges the concrete to the abstract for addition and subtraction. Our hope is that it will bring a greater understanding of math operations to non-Montessori populations also!