1, fully grasp all the knowledge points of mathematics, and clarify the relationship between the knowledge points before and after. Throw away books and reference materials and redraw the first-level mind map according to your own understanding and logic, so as to be clear, clear and comprehensive.

2. I have a guide map in my heart to do the problem, check for leaks and fill gaps, refine it on the basis of the original guide map, build a secondary mind map, "flourish" the guide map, add my own ink, and make the knowledge intimate.

3. Take out this three-level knowledge map of Qing Guo and check whether you have mastered all the knowledge points item by item. Further deepen your understanding, mark unfamiliar knowledge points, review in a targeted way, overcome difficulties before the final exam, go into battle lightly, and increase your confidence chips for getting high marks.