Mark Eichenlaub

Mark joined AoPS in 2018 after completing a PhD in physics (focusing on physics education research) at the University of Maryland. There, he also prepped the U.S. Physics Team and attended IPhO as a coach. He has been teaching physics and astronomy classes since undergrad, and is always impressed by creativity and resilience students show when they have a great problem to work on. If you start explaining a proof to him and he happens to see how it works half way through, he'll spend the rest of the time flailing his arms around conducting the final steps like Willem Dafoe in Boondock Saints. On weekends you might find him exploring the miles of trails San Diego has to offer.