1. Teaching method: Yale training institutions teach 50 people in small classes, and teachers teach face to face on the blackboard. The effect is good, but Tianyi training institution teaches in large classes, which is crowded and the environment is not good.

2. Responsibility: Dongfeng teacher of Yale training institution has a strong sense of responsibility and cares about students' learning, while the teacher of Tianyi training institution is only responsible for attending classes, so Yale is more reliable.