Wang Geometry was originally named. This nickname was given to students a few years ago for teaching geometry, so I privately took the nickname Wang Geometry, but it was very popular with a math teacher. The classroom is lively and humorous. Although I didn't attend the class of "Wang Geometry" for a day, there were too many people around Ma Jishi who told the legendary story of "Wang Geometry". In 2005, Ma Jishi spent two hours writing this article, but what he didn't expect was that it was actually in a Chinese textbook.