1, the mathematical foundation is very important. The characteristic of this course is too strong inertia. Every knowledge point is like every step when we go upstairs. Failure to learn a knowledge point well is like missing a step.
2, mathematics is not by rote, but by understanding, how to understand, or on the basis, so students with poor grades should spend more time in the first step.
3. Do more questions and think more to open your mind.