We should examine these problems carefully. When doing a problem, the taboo is not to look at the problem carefully and not to work hard. As a result, not only a lot of time is wasted, but sometimes wrong choices are made, resulting in half the effort. Therefore, we must read through the questions and quickly think of concepts, formulas, theorems and problems that should be paid attention to in knowledge points. To explore the implied conditions in the topic, we should discard the false and retain the true, and understand the true meaning of the topic.

The key to solving math problems in senior high school is 1. The last problem in conic curve is often very complicated, and it is difficult to get together, which makes it impossible to calculate K. At this time, the special value method can be used to calculate K forcibly. The process is to get together first, then calculate δ, and list the expressions that need to be solved by David's lower theorem, and it will be ok.

2. If there is a cone volume and surface area in the multiple-choice question, directly look at the option area, and find the small one with a difference of 2 times is the answer, and the small one with a difference of 3 times is the answer. I have been trying!

3. The second problem of trigonometric function, such as finding the corners of a(cosB+cosC)/(b+c)coA, and then taking the angle A calculated in the first problem as 60 degrees, directly assumes that both B and C are equal to 60 degrees. Save time and effort!

4. There is a step in the process of spatial geometry proof that I really can't think of directly writing out the unused conditions and drawing unexpected conclusions. If the first question really can't be written directly, the second question can be used directly! Students who use conventional methods suggest that a spatial coordinate system should be established at will first. If you make a mistake, you can get 2 points!

The method of solving problems in high school mathematics avoids the wrong habit of "meeting without being right"

When solving problems, we should carefully look at the questions, see the figures clearly, standardize the problem-solving format, and develop good problem-solving habits. Some students (especially those with better brains) feel very good about themselves. Usually, the problem is just to write an answer, without paying attention to the problem-solving process, so the writing is not standardized. However, even if you answer correctly in the formal exam, you will lose more points because of the incomplete process.

There are still some students who lack self-confidence in their studies. When doing homework, it is inevitable to check each other's answers and not carefully find out the reasons for the mistakes and correct them. When these students arrive at the examination room, they will often make psychological mistakes, leading to "meeting but not being right", or taking time and effort to check repeatedly to ensure the correct rate, which will affect the overall performance. These problems are difficult to solve in a short time, so we must develop good problem-solving habits in peacetime.

"Meeting without being right" is a big taboo in mathematics learning in senior three. There are common mistakes in exams and calculations, which are usually considered to be carelessness. In fact, this is a bad study habit, which must be gradually overcome in the first round of review. Otherwise, there will be endless trouble.

We can combine the specific problems existing in solving problems at ordinary times, find out the reasons one by one, see if it is the cause of behavior habits or the defect of knowledge, and then solve them in a targeted manner. Take some notes when necessary, that is, "wrong notes". Every once in a while, review the "wrong book" or the papers marked with wrong questions. When reading reference books, you can also target the key or wrong questions, and then focus on this book in the future.