Gaokao tests are mostly fixed subjects. Therefore tutoring focus on how to answer and solve questions that ultimately drive from some common knowledge. It's li

Gaokao tests are mostly fixed subjects. Therefore tutoring focus on how to answer and solve questions that ultimately drive from some common knowledge. It's like to learn how to describe the same thing with many different methods. Sure, it's not entirely a waste time that the tutoring can teach some interesting aspects. But at the end of the day, it does not teach anything that was not already covered in the school teaching. And we all know that Chinese students in US tend to limit their thinking in narrow scope. Then why not let the students to absorb non curriculum staff outside of the class, therefore eliminating most of the tutoring.