2. If a child studies hard or doesn't study well, it is a question of learning methods. High school and junior high school have different types of knowledge. The former often needs to be understood and used flexibly, while the latter often needs to be memorized and has little flexibility. Therefore, we must not continue to use the learning methods of junior high school, but whether we can adapt to the new learning methods is very obvious in the first stage of senior high school. Students who are among the best in junior high school may end up in senior high school.

The key of senior high school mathematics and physics lies in understanding, digesting and using flexibly.

Say it in a popular way:

Junior high school only needs to know how to do it, because the content of the exam is just like a gourd painting gourd ladle.

The most advanced students not only know how to do it, but also know how to think about it. The latter requires students to think and experience for themselves. These things can't be taught by teachers.