What to do if you have a problem doing high school math problems

If you are not good at math, it means that you are not qualified, but it doesn't matter, and that's how it comes down.

The mathematics of the college entrance examination only has 20 points of difficult questions, and I personally think that the focus is on the 100 points of basic questions and medium difficulty questions. This is to cultivate the rigor of thinking by practicing more basic questions.

If you encounter a difficult problem or a mistake that you are prone to make during practice, put it down first, prepare a mistake notebook to write down (this is very important), read it before going to bed, and redo each mistake at least five times in a month (if you really don't have time to follow the answers, you can do it). The frequency of this review should be from dense to sparse, such as the first time every 2 days, the second time every 5 days ......In this way, correct mathematical thinking can be formed into a habit.

At the end of the day, try to be able to figure out what to do as soon as you see a math problem.

I wish you success in the college entrance examination.

If you are not good at math, you can try to do all the exercises in the book, if you are a liberal arts student, this will definitely work, if you are a science student then I can't help you. Anyway, I used this method, and the math improved by more than a dozen points, and basically the math test was above 110.

When you encounter a problem, you can first look at the knowledge points of this topic, and then look at your problems after you have really mastered the knowledge points... Or you can refer to the similar questions you have done, (you don't have to do many questions, but you must master each type of question), and you can study them according to your previous exercises。。 Or, tell me the problem, and I'll help you solve it...

Hee-hee......

Of course, if there is a question that you can't know, you should think independently first, and if you really can't ask the teacher.

Thinking independently, you will have your own ideas in the process of solving problems and consolidate some knowledge points.

There are many ways to solve problems, and finding the right way to get the right answer is just as rewarding as clearing the game. To solve the problem, we must find the main contradiction, find the known conditions and unknown conditions, read the questions more, sometimes the answer is in the questions, open up our own ideas, and bravely overcome difficulties.

If you really don't, go to the class with a question or ask the teacher. In order to really figure out which knowledge point this question is examining, and how to solve the problem. Think about the difference between your own thinking and the teacher's thinking, and why does the teacher use this thinking?

Do it thoroughly, draw inferences from one another, and solve the same problems in the future, and also increase your own problem-solving ideas.

In learning, it is impossible to answer every question at a glance. When encountering difficult problems, it is a correct learning attitude to think independently, and although you can't get the right answer through your own analysis and calculation, you can still solve a direction.

If there is still no result after your last efforts, you can ask the teacher for advice to make the correct answer. After the independent thinking of your own heart, you will be able to understand the solution of the problem more effectively after the teacher's explanation.

Math is all about understanding, and you can clearly guide yourself about what the problem is, and it's great to be able to ask these questions, but if you read the textbook carefully, many questions will be answered.

At the heart of it all is understanding concepts!

If you don't understand the concept well, the bareback formula won't work. If you want to understand, follow your analogy.

You just know that it's a watermelon, you also have to know what a watermelon is for, how it came about, so that you can know what a watermelon is.

Your third question is that you still need to understand concepts, and there are many ways to understand them.

If it's about this, understand it in conjunction with the Cartesian coordinate system and the unit garden. It's going to be more thorough.

Physics in the future will also need this, understanding concepts, this is the core.

There are really specific problems that I don't understand.

Mathematics is not something that can be memorized, you have to think more, understand more, take your time, ask if you don't understand, don't know why it is!

I don't think it's useful to be just a formula, I just graduated from high school last year, I used to be very bad at math, it's worse than one time, in fact, I think math is the spirit of ten thousand questions, as long as you are willing to work hard to do the problem, the key is whether you are willing to do it, I finished two reference books in the summer, my math really went up a lot, and there is to know how to touch the bypass, and you can't die to do the problem, you must know the classification and summary, this job still has to rely on yourself, I have the habit of making wrong problem sets, In the past, when the teacher recommended us to do it, I thought he was too troublesome, in fact, it was usually a little busy, and when it came to the exam, you must be much easier than others, just look at what you did wrong before, every time you read your mistakes, there will definitely be improvement, I always cut and paste the exam papers, sort them out, I am a person from the past, I think it is very useful, as long as you have confidence, do not give up, you will definitely be able to do it.

Angles and radians are similar, but the symbols are different, how many degrees are used for angles, and how many degrees are used for radians" "The radian unifies the relationship between the arc length and the radius, making it possible to calculate, and you will find that the radian is very convenient to use after studying advanced mathematics.

I used to be a representative of the math class, and I communicated with the teachers a lot, but now that I am in college, I will tell you about my experience, which is not necessarily right.

The biggest difference between high school mathematics and junior high school mathematics is that you don't need to use your brain at all in the junior high school mathematics exam, basically according to the routine, everything is bright, and the increase in high school problem-solving methods and the synthesis of knowledge make you need to think about it all over and over again when you take the exam, and you need a big picture, that is, you need to know clearly what you want to do, what conditions you need, and what ideas you need to use when you see a topic. For some existential and unique topics, you must clearly know what you want to make up, and avoid aimless calculations, wasting time and not getting points. This needs to be cultivated at ordinary times, you can cope with the formula in the junior high school exam, you have to learn to sort it out in high school, learn to summarize, you have to know what ideas are behind the formulas in the book, and what you do in each exercise to test you, this may be more difficult at first, but this is very valuable, you have to sort it out more, so that your knowledge will be a whole piece, and it will not feel very trivial, for example, after learning the conic curve, you will find that the elliptical hyperbolic parabola is essentially the same in nature, but it is slightly different in details. However, the idea of dealing with the problem is still similar, that is, to make good use of the focus, grasp the geometric relationship, and combine the number and shape.

At the end of the lesson, if you can feel that you can think of a large piece of a problem from the beginning, then it means that your organization is effective, and your knowledge is interlocking, not scattered, so that you can deal with it when solving the problem.

Practice is necessary, but it is only a means, it is for you to chew book knowledge, don't blindly ask sea tactics, according to the general high school training intensity, you will be exposed to all the college entrance examination question types, it is not necessary to find questions by yourself, the important thing is to digest each question, it is recommended to make a set of wrong questions, so that you can often reflect, you can not make the mistakes you have made before is progress.

Pay attention to calculations, many people think that calculation is a small problem, the big exam can be corrected, this is usually cultivated, every time don't let go of calculation mistakes, be ruthless to yourself, and be more demanding, only in this way, you will have confidence when you take the exam, and you will not be afraid of calculation.

Finally, I have to say that everyone's state is not static, I am very uncomfortable with high school stereo geometry, once I was admitted to the class of more than a dozen, and then I talked to the teacher, I also summarized and summarized, found some rules and methods of stereo geometry, and finally the college entrance examination is very easy to get the stereo geometry, so don't be discouraged, communicate with parents and teachers, and discuss problems with students who learn well, and will get through the trough period.

I wish you all the best in your college entrance examination. Life in science is actually wonderful, and it's not just numbers and formulas.

I don't remember the specific concept clearly, but C is the concept in permutation and combination, which seems to refer to the arrangement without order requirements, so it's called combination. c(n,k) refers to the arbitrary selection of k things in n things to combine (k is less than n) how many situations there are If there are 3 bulbs, numbered 1,2,3, take any two, he does not pay attention to the order of these two bulbs on the premise that there are 3 situations, (1,2)(2,3)(1,3) is represented by c is c(3,2), and the calculation method is 3*2 (2*1) c(5,2) is to choose 2 out of five things, and the calculation is 5*4 (2*1).

c(5,3) is 5*4*3 (3*2*1) in the first formula of **, which means that k events have occurred in n events, and the probability of his occurrence is p, and the probability of this k event in n events has c(n,k) Because k has occurred, then the probability of occurrence p has k times, which is the k power of p, and the event that did not occur has (n-k) pieces, and the probability of occurrence (1-p) has (n-k) times, This is the (n-k) power of (1-p) multiplied by the probability of occurrence in general (e.g., if two of the three light bulbs are lit, the probability of being bright is , then it can be expressed as c(3,2)* (squared *, c(3,2) is calculated above).

I can't tell, can you understand?

Are you liberal arts? Combination! It is to take m elements from n elements to form a group!

For example, you have to choose 3 people out of 5! Formula: Look at the picture!

c is the combined number, and the first equation in your graph is the formula for "independent repeating events occur exactly k times"; I really don't understand the second formula in your picture, what do those numbers that suddenly appear mean? The point is that the question you gave is not complete, and you don't know what you want to ask for. These are the "probability" questions you are asking in high school math.

If you don't understand math definitions, concepts, etc., I suggest you read the textbook.

c is the combination number binomial coefficient, and the formula c = n*(n-1)...n-k+1)/k*(k-1)..1 e.g. c =4*3 2*1=6

Doing difficult problems all at once is not only a blow to yourself, but also destroys your self-confidence, therefore, it is recommended:

1. Do the example questions in the textbook first.

2. Do the after-class exercises again if you lose your head.

3. Make the exercise book again.

4. Do the test paper again.

It's best to do it more than twice, 3, 4 or not, it's up to you to see if you want to become a master.

Down-to-earth, steady and steady.

It is impossible to greatly improve the draft in a short period of time, and besides, since the problem is too difficult, it is impossible to be too "easy".

Suggested Lead Wood:1. Always study and think from multiple perspectives (such as starting from a certain condition, considering the relationship between each condition, and working backwards from the conclusion,......

2。If you really can't study it, you must consult others and make the problem clear;

3。If you don't have to do a question, it's okay, you have to summarize and analyze and accumulate experience. (I'd rather do a few fewer questions).

Mathematics is all about ideas. Don't dwell on whether a topic is done or not. To form a set of thinking system, to put it bluntly, you must at least have a general idea and a clear direction before doing a question.

I feel that this kind of thinking is more important than not doing a problem. If you don't have any ideas, take it one step at a time, even if you make it, it won't improve you. Isn't it just to improve?

Let me tell you a way to cultivate mathematical thinking: just don't do the sea of questions tactics. At that time, you just took out the problems you usually did and did them again and again, until you had a clear idea.

High school mathematics is not sets, functions, sequences, trigonometric functions, vectors (one-dimensional), inequalities, analytic geometry, solid geometry, derivatives, and complex numbers. , mathematical statistics.

There are many concepts in this chapter. The focus of this part of the function (the function should know the definition domain, value range, monotonicity, parity, bumpiness, and derivability) Derivability estimation should not be required in high school. Let's talk about it according to the school's requirements.

Quadratic functions are important (because quadratic functions are elementary and derivable everywhere). High school doesn't learn the limit, so there is no requirement for the guide. ）

Number Series: In this chapter, you can pay attention to several methods to find the general term 1Recursive method (mathematical induction) summation1Two-formula decreasing method (a series of equal differences multiplied by a series of equal proportions). 2.Learn to turn a product into a form of sum difference.

The chapter on trigonometric functions focuses on operations between trigonometric functions. Simplification (Note a few principles: the principle of uniform angles.)

That is to say, when there is a single angle and a double angle. You should turn the angles together into double angles or single angles). Note that a few formulas should be used.

A trigonometric function is a function defined on [0 , 1]. Therefore, trigonometric functions will also require (value range, parity, concave and convex), and the concave source is clever and convexity, and the high school requirements are not high. Because unevenness will be highlighted in higher mathematics.

Vectors are mainly combined with functions (vectors are also simple. Just know that the definition will be calculated with the definition). Vectors can't be hard to come by. In Hail University, a course of mathematics called linear algebra is used to study matrices.

Sine Cosine Theorem This is very important.

The chapter on inequalities is more comprehensive: it is often the last question in the college entrance examination. Proof of inequality is generally divided into proof of abstract inequality and proof of concrete inequality.

In general, the most common solution should be to turn it into a function proof. For example, we want to prove f(x)>g(x)You let f(x) = f(x)-g(x) and then study just prove that f(x) is the minimum value of 0 in the odd defined domain.

Abstract inequality proofs are also to be turned into the form of functions and then proved according to conditions. Abstract inequalities are more difficult to prove.

The above should be the math I learned in my first year of high school when I was in high school (if there is something wrong with Kuan, I hope to give more advice and learn from each other).

In fact, high school math is not difficult, as long as you are willing to work hard, you should be able to learn it well. Choosing to fill in the blanks is a trick, but that's a last resort. The important thing is your own math skills.

If you feel the need to leave your QQ online.