Teaching is regular: teaching and learning have certain rules, and teaching should have directions and goals, which cannot be deviated from.

There is no fixed method in teaching: there is no method that must be followed in teaching. As long as the teaching objectives and learning objectives can be achieved, all legal and reasonable methods can be adopted.

The key is the right method: adopt different methods for different objects. Different objects and methods will definitely lead to different results. The best way is to achieve the best effect, and the best way is to find it.