My four-part series on building numbers from the ground up. From nothing, we create the natural numbers, learn how to count with them, learn how to do arithmetic, then use them to construct the rational, real, and complex numbers.

My standalone mathematical videos. I like to interrogate even the simplest of ideas to pick out the fascinating theory lurking within. Or sometimes I just like to explain things.

My three-part series on introducing the Sporadic Groups. We start with Steiner Systems and the MOG, a diagram depicting an incredible structure that pops up in many areas of mathematics, which is fundamentally tied to the first Sporadic Groups, which themselves are contained in many of the others.

My ongoing series “MAFS: Mathematical Accuracy in Films” where I examine films based on mathematicians or which heavily feature mathematics, ranking them on a 2-axis scale of accuracy vs quality.