Mr. Hua, a famous mathematician, often advocates "dare to advance and dare to retreat, and retreat to the simplest situation, and then enter after clarifying the problem." "

When solving problems, we should sum up and think more, and try to find different personalized solutions. Try to observe the mathematical essence of the topic. Some topics can be read or done again at regular intervals, and the ability will be greatly improved.

One of the most important problems in this method is "Practice makes perfect". Everything must be cooked, and only when it is cooked can it be discovered. But what I am talking about here is not to recite laws and formulas, nor to recite other people's ready-made conclusions. People who are not familiar with it may not be able to recite it, nor may they be familiar with it. If someone has read a book for ten or twenty times, but can't deeply understand and use it, then I say it's not familiarity, it's chanting. Familiarity is the main link to master the subject you are studying, and to understand how predecessors thought and invented these things.

"From thin to thick, from thick to thin; Hard work is the first, practice makes perfect; Diligence is a good training, and hard work is a point; Genius lies in accumulation, and cleverness lies in diligence; Hands never leave the body, mouth never leaves the mouth; Looking for a master at chess and hitting the door with an axe are all advocated by Mr. Hua. Only when you have Chen Can, you are new. You can't always talk about new things. Without Chen, you can't be a newcomer! Innovation must have a foundation. Only when you understand thoroughly and have a wide range of knowledge can you have insight, confidence and innovation! " And learning methods. We should have a sense of innovation and a spirit of exploration. There is no need to talk about what mathematics is.