1. According to official website's inquiry of Nanchang Education Bureau, He Donghua is the head of the mathematics teaching and research group of Nanchang No.17 Middle School. He teaches high school mathematics and junior high school for a long time. During my school days, I was repeatedly rated as an excellent party member and an advanced teacher, and my class was rated as an advanced class collective in the city.

2. Teacher He Donghua helped the students to participate in the city mathematics competition many times and won the first prize. The classroom is lively and not boring, which stimulates students' interest in mathematics. It is deeply loved by students and has a good reputation.