1. Hierarchical teaching can divide students into several groups and adopt different teaching methods for students at different levels, so as to better meet students' learning needs and stimulate students' interest in learning. For those students who have excellent grades and grasp knowledge quickly, they can be made to accept stricter requirements at a higher level.
2. Improve the teaching effect. Hierarchical teaching is a way to make different teaching plans for different students, aiming to help students master knowledge and skills quickly. Sometimes, there will be some students with strong learning ability in the class, but above the overall student level, if there is no hierarchical teaching, they may feel extremely boring and can't get real challenges.