Andrew came to Tufts in 2018. He first became interested in mathematics education after graduating from college when he tutored students in a local, inner city junior high school. His research focuses on how students and teachers reason about topics related to multiplication (including fraction arithmetic, proportional relationships, and linear equations). He is especially interested in how they make use of inscriptions (drawings) and resources for reasoning about quantities. In addition to research on teaching and learning, he enjoys developing novel mathematics courses.