Xu Dezhi has been engaged in the education industry for nine years, and now he is the head of the mathematics group of an online education institution in Beijing. In the past two years, the number of online students has increased eightfold.

Xu Dezhi, a star teacher, graduated from Tsinghua University and is good at simplifying complicated teaching experience. He has 9 years of teaching experience and 8 years of graduating class experience, and is certified as a senior teacher by China Education Association.