Hubei people. According to Tencent's classroom inquiry, Lv Yonghuan, a math teacher in Zhuhai, is from Wuhan, Hubei. He graduated from Wuhan University with a master's degree, and participated in Peking University Summer School of Mathematics during his postgraduate period. He used to be a math teacher in Zhuhai No.1 Middle School and an excellent coach in the Olympic Games. He won the special prizes of "Excellent Head Teacher", "Advanced Teacher of the whole school" and "Microteaching" for many years.