1, Qin Ming has done a good job in teaching Gong Ji, while Yang Yan's teaching experience is not as rich as Qin Ming's, and her ability to grasp the classroom atmosphere and rhythm is poor.
2. Qin Ming has more practical experience than Yang Yan, and can understand various abstract concepts into a series of easy-to-master knowledge. In Yan Yang's class, students' ability to master new knowledge is poor.