How do we improve our academic performance

Before the text begins, I want to say, " learning can only be done on my own, and the 

rest can only serve as an aid or an incentive."
In terms of learning, the most important thing is to listen in class and preview before class, today this article first talk about preview
Text: the so-called preview, not just read a book, but should think about their own problems, reasoning conclusions, appropriate to do some basic exercises,
when in doubt, try to solve their own ( not search the answer ), if not, can write down the question, in the course of class, do some things
What I said, will be announced in the next issue, if you like, please pay attention to me, point a praise, have any questions or suggestions, please leave a message below