The math wheel redesigned by FunFunBoy. I originally loved the snap-locking mechanism he designed for the dial, but I always felt there was more to it - I wanted this tool to not only help students intuitively demonstrate the four arithmetic operations, but also to be used to show inequalities. So, I increased the font size and added various equal signs. In addition, I added markings on both end covers to let students easily identify which arithmetic problem they are working on. When printing, you need to print the two end covers and eight number rings separately, while the other

July 5, 2018: I added a blank spinning ring, so that everyone can freely create personalized patterns or just use it as a spacer.