1. Experienced: learning while thinking about Mr. Dong, with rich teaching experience, and many years of teaching experience in senior high school entrance examination, independent enrollment and competition. I am familiar with the difficulties in senior high school entrance examination, junior high school competition and senior high school league, and can provide professional guidance for students in many exams and competitions, while Teacher Zhu Tao has only taught for a few years and has little teaching experience.

2. Diversification of teaching style: In terms of teaching style, Mr. Dong is good at skill summary, model refining and thinking cultivation, which can stimulate children's interest in learning to the maximum extent and master the logic and focus of mathematics learning, while the teacher's teaching method is single, focusing on lectures and exercises.