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The study of mathematics] The examination of mathematics is mainly the basic knowledge, and the difficult problems are only synthesized on the basis of simple problems. Therefore, the content in the textbook is very important, if the knowledge in the textbook cannot be mastered, there is no capital to touch the class. For the content in the textbook, it is best to preview it before class, otherwise there is a knowledge point in class that does not keep up with the teacher's steps, and the following will not know why, so a vicious circle, you will begin to get bored with mathematics, and interest in learning is very important.
After all, during class, it is the teacher who is calculating and explaining the problems, and the students are listening, which is a more mechanical and passive process of receiving knowledge. You may think that you have understood it in class, but in fact your understanding of the problem solving method has not reached a relatively deep level, and it is very easy to ignore some of the difficulties that must be encountered in the real problem solving process. "A good brain is better than a pen".
For the solution of mathematical, physical and chemical problems, it is not enough to rely on the general idea in the head, but only after careful pen calculation can we find the difficulties and master the solution method, and finally get the correct calculation results. Secondly, we should be good at summarizing and classifying, looking for commonalities and connections between different question types and different knowledge points, and systematizing the knowledge we have learned. Here's a specific example:
In the function part of higher algebra, we learned several different types of functions, such as exponential functions, logarithmic functions, power functions, trigonometric functions, etc. But if you compare them and summarize them, you will find that whatever kind of function you need to grasp is its expression, image shape, parity, increase and decrease, and symmetry. Then you can make the above contents of these functions in a big **, and compare them to understand and remember.
When solving problems, pay attention to the combination of function expressions and graphs, and you will definitely get much better results. Finally, it is necessary to strengthen after-class practice, in addition to homework, find a good reference book, and try to do as many practice questions as possible in the book (especially comprehensive questions and application questions). Practice makes perfect, so that you can consolidate the effect of classroom learning and make your problem solving faster and faster. Hope.
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I'm also a sophomore in high school, but you learn so slowly, we learned space vector last semester In fact, space vector test is a spatial thinking ability and spatial imagination ability, sometimes the teacher talks about the proof steps do not understand, you can try to flatten the three-dimensional diagram yourself, split it into a few or more plane figures and then solve the problem, maybe it will come out
Done, read and ask questions
Ask the landlord to give a satisfactory answer.
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Huaiyin Marquis Han Xin.
The young man came from a poor background and his family was poor. He was humiliated by his crotch and begged for food from his mother. Later, he served as the general of the Han army, and with his own strength, he successively adopted [Ming Xiu Plank Road Darkness Chen Cang], [Linjin Suspicion], [Xia Yang Smuggling], [Backwater Array], [Passing on the Tree], [Half Crossing and Attacking], [Ambush on All Sides], [Embattled] Breaking the Three Qins, Ping Dynasty Kingdom, Capturing the King of Wei, Destroying the Zhao State, Descending the King of Yan, and Dingqi Kingdom. >>>More
I mainly rely on comprehension to learn mathematics, and after I understand all the postures in the textbook, I can start to do problems, and just do a few sets of problems.