Po Shen Loh took an hour out of his day to sit down with the Going Deep podcast and discuss his company Expii that helps students learn difficult STEM topics.

  He represented the USA Math team at the International Mathematical Olympiad as a high schooler in 1999, where he won a silver medal. He came back to the team as a deputy leader (assistant coach) in 2004 and 2010-2013. He took over the Head Lead role in 2014 and led the US to its first championship in 21 years in 2015.   Po founded Expii Inc. in January of 2014 as a learning tool to help replicate the most effective methods of teaching students all over the world. Expii's mission is as follows;    "We believe that high-quality educational resources should be available to anyone, no matter where they are or what they can afford. We also believe that students and teachers are the best at explaining things.

We build the tools ordinary people need to educate one another. So far, we've designed an approachable markup language that enthusiasts have used to create thousands of lessons. We've also created a free platform to interconnect these lessons." Po got his PHD in Mathematics from Princeton in 2010, where his thesis discussed combinatorics (the study of discrete systems) and probability theory. Prior to his work at Princeton, Po-Shen received the equivalent of a masters degree in mathematics from the University of Cambridge in 2005, where he was supported by a Winston Churchill Foundation Scholarship. He received his undergraduate degree in mathematics from Caltech in 2004, graduating first in his class, and his undergraduate thesis later received the Honorable Mention for the 2004 AMS-MAA-SIAM Morgan Prize.

  After getting his PHD, he went on to immediately begin an assistant professorship in mathematics at Carnegie Mellon University.    Articles   Washington Post 1-hour lesson on probability   Connect Twitter @PoShenLoh @ExpiiInc   Expii website