During the learning process (usually in the middle of learning), students' academic performance and learning efficiency stagnate for a period of time, and even they are vague about what they have learned. This phenomenon is called "plateau phenomenon".

Reason:

First, the immobilization of learning methods;

Second, the complexity of learning tasks;

Third, the learning motivation is weakened;

Fourth, interest is reduced;

Fifth, mental and physical fatigue;

Sixth, the willpower is not strong enough.