Mr. Hong Mun, M.Ed. (Harvard Graduate School of Education), is the Founder and Director of The Math Classroom, and one of the world's leading educators in Competition Mathematics.

As a former competitor with a deep expertise in the field, he has guided countless students to excel in mathematical problem solving and achieve top results in international math competitions.

Mr. Hong Mun previously served as the Team Leader and Head Coach of the United States IMSO National Team, which was ranked 7th in the world in 2019 and continue in this role in 2025 and 2026.