How to start over with high school math

Put the front of the deserted lesson.

Take a look at the definitions and formulas for each chapter.

Select a few typical questions after class, and focus on understanding.

While revising, listen carefully to the teacher's new lessons.

Because when teaching a new lesson, you will definitely use the previous knowledge to review it in a link.

If you've ever been brilliant in mathematics, you must have a sensitive sense of math that you can memorize as long as you understand it, and you can apply it if you remember it.

It won't be too difficult to review.

I'm about the same as you, I didn't study much in my first year of high school and second year of high school.

But my science has never been bad, but I'm a biased person, I don't know anything in English, and my language is average.

Remember, you must do more questions in science, integrate everything you have learned, and know that it is not too late to turn back, the main thing is to really take action.

Don't try to study hard but don't do anything in your head.

I used to be terrible at math, I often scored about 60 points out of 150, and I took 120 in a year of revision, although it was not very good, but I was already very satisfied. Of course, a lot of effort has been put in. Learn mathematics steadily, don't be over-handy, do more questions, don't let yourself have any doubts, and solve problems immediately.

I'm a high school math teacher, and the questions you ask are what many students want to ask, don't think about anything, find all the textbooks right away, read chapter by chapter, and do problem by question! Act now!

I've always been every|It's been like this all year round, and I'm glad that I asked a little bitThere are no questions.

Convex functions are a class of features of mathematical functions. A convex function is a real-valued function defined on a convex subset c (interval) of a vector space.

The convex function f defined in a certain open interval c is continuous within c and is differential at all but a countable point. If c is a closed interval, then f may be discontinuous at the endpoint of c.

A univariate continuous differentiable function is convex | in the interval, when and only if the function is above all its tangents: for all x and y in the interval, there is f(y) >f(x) +f'(x) (y − x）。In particular, if f'(c) =0, then c is the minimum value of f(x).

A univariate second-order differentiable function is convex in the interval, if and only if its second derivative is non-negative; This can be used to determine whether a function is convex or not. If its second derivative is positive, then the function is strictly convex |, but the reverse does not hold. For example, the second derivative of f(x) = x4 is f"(x) =12 x2, zero when x = 0, but x4 is strictly convex |Target.

For the convex function f, the sum of the horizontal subset and (a r) is the convex set. However, a function in which a horizontal subset is a convex set is not necessarily a convex function; Such a function is called a quasi-convex function.

Define the function f with the domain [0,1] and define it as f(0)=f(1)=1, when the second derivative of the 0 function x3 is 6x, so it is a convex function on the set of x 0 and a concave function on the set of x 0.

The function f(x) =1 x2,f(0)=+ is a convex function in the interval (0,+, and is also a convex function in the interval (- 0), but is not a convex balance shed sell function in the interval (-, which is due to the singularity at x = 0.

Many students have a headache for mathematics, because the score of mathematics is not high every time, and many knowledge points are not well understood, so how to learn mathematics in junior high school to effectively improve the score?

How can I learn math in junior high school to improve my score?

The focus of the study.

1. Attitude. Attitude plays a very big role in the study of this subject, if there is an attitude first, it will be half the success, so it is very important to have a serious attitude to face any difficulties. I will try my best to think about difficult problems, and if I have this attitude in my studies, I can learn these subjects well.

2. Problems. In the process of learning, you need to develop some good habits, such as making plans, exercises, previews, etc., these contents have a very important effect in learning, preview can make you more focused on listening to the class, will not be distracted, practice can apply the knowledge learned that day, there will be no problem of forgetting.

3. Error bank.

There may be some mistakes when learning this subject, and you can use a small book to write them down after the mistakes, you can do it every few days, and you can refer to the questions that are prone to errors when reviewing, which is one of the key points of how to learn junior high school mathematics.

4. Notes. For any subject, note-taking is very important, it can record the key points learned in class for later review, and can be taken out at any time to review the previous content.

5. Homework. Homework is not unfamiliar to many students, generally teachers will assign some homework after class, so that the content learned in class can be fully used, it is not enough to rely on listening to the class, but also need to practice after class to consolidate the knowledge learned in class.

When you are promoted to the third year of junior high school, you will face the college entrance examination at this stage, and the general subjects at this stage have been finished, and the review will begin at this stage, at this time, the previous notes and the wrong question bank will come in handy, which can increase your review efficiency and save time to practice some other subjects.

Knowledge Framework Diagram.

I believe that as long as the above points are done, basically the score of this subject will have some changes, of course, in the study plan is essential, whether review or study need to develop a professional plan to help themselves learn, in addition to the above points, the math score will be quite progressive, if you encounter problems that you can't solve in the study, you need to seek advice in time like a teacher or a better classmate than yourself, so that you can solve the difficulties, and it will not have an impact on future learning. The above is the content of how to learn mathematics in junior high school, I believe that if you do these points well, the overall score of each subject will appear**.

First, the mentality should be corrected, and secondly, the college entrance examination mathematics is the content of 14 chapters, and the first task we have to do is to summarize and sort out this knowledge point, and organize it into a piece of paper, and then the basic knowledge points mainly involve two number sequences, one is equal difference, and the other is equal ratio. The first piece is their definition. The second is the general image formula, which is enumerated through five aspects, and the basic knowledge of the whole chapter is summarized.

The corresponding question types are the two question types commonly tested in the number series. How do you find the way to the formula? To sum up, there are five methods commonly used, the first is to directly use the definition of difference and proportionality.

The second rescue sequence involves a formula that fits any sequence. And this method is the most commonly used when it comes to taking pictures of formulas. Then there is the accumulation method, the accumulation method, the construction method, and the other article that summarizes these methods and writes them on this paper, with knowledge in front and methods in the back, so that each chapter can be done one by one, and it will be more convenient to review and achieve twice the result with half the effort.

That's the first point.

The second point, I think that now I review the wrong questions I have done, so far I should say that the students have done a lot of questions, especially the students in the third year of high school, one is that the teachers in the school have to send questions to the students to do every day, and at the same time, the students themselves do not give up, and some of them have bought some mock questions to start doing. Special attention should be paid to the questions that have been done and the mistakes that have been made, because the mistakes reflect the students' own loopholes in knowledge and methods, and they can improve their abilities in all aspects by summarizing the wrong questions.

Thirdly, I think it is also beneficial to read the five textbooks carefully when reviewing at this stage. Because the college entrance examination questions can be found in the textbook every year, the original questions or variations of the original questions in the textbook, the example questions, exercises, theorems, properties, and methods of proof involved in the textbook will be reflected in the college entrance examination. Therefore, the return to textbooks at this last stage is also advocated by most teachers.

Finally, in the college entrance examination, students are required to have four kinds of ideas, the idea of functions and equations, the idea of classification and discussion, the idea of number problems, and the idea of classification and transformation.

If you have a good foundation, buy 53 to write, summarize the test knowledge points and question types and corresponding disintegration methods, write more and practice more!!

When reviewing for the college entrance examination, you must grasp the knowledge in the classroom and the details in the textbook, only in this way will your math score improve. Some students always do ambitious things when revising, and they feel that they have already learned the text once, so they don't need to repeat it. So they will focus on the difficult exercises, in fact, these are the things to be done in the second and third rounds of review, and everyone only needs to return to the textbook in the first round of review.

Textbooks are one of the most important ways to learn, because all the problems come from the textbook in the final analysis, and if you can grasp all the key points in the textbook, then you will not be panicked about any kind of exercises on the test paper. Moreover, the knowledge points in the textbook are very complete, and if you can transform all the formulas and data in the textbook, you will basically not get a low score in the exam. Therefore, when the teacher takes everyone to review the textbook in a round of review, the students must not take it lightly, and strictly follow the teacher's rhythm.

When reviewing the textbook, it is necessary to understand all the knowledge points in the book in all aspects, which are also very important for students. Some students may feel that they can just take a look, and if they really can't do it, they will review these knowledge points by doing questions. In fact, you should understand the knowledge points first, and then do the exercises, so that the pace of the questions will be faster, and there will be no mistakes over and over again.

The most important point is that everyone must ensure a good attitude, because there are many students who are easily flustered when facing the college entrance examination, and there is no way to keep in mind no matter what they study at this time. I hope that students can correct their thinking at this time, and maintain a healthy schedule and never stay up late to study. Because the way of staying up late to study is just moving yourself, I hope you don't wear yourself out when you talk about revision, after all, learning is a sustainable thing.

You can choose to learn Olympiad mathematics for your child, so that your child can improve your math scores, and will make your child very good, and you should also find a professional teacher for your child to make up for it.

You should study for your weaknesses and also use the tactics of the sea of questions, which can have a good effect.

Then you should review some basic knowledge, and then do more basic questions, and it is very good to use the tactics of sea of questions.

The math problems in the college entrance examination are actually very basic, and you may seem to have to spend a lot of brains, but they actually start from the basics, so I suggest:

1. You or find a teacher to review the basic knowledge of mathematics from important to secondary, from beginning to end, and keep it in mind, prepare a small book, and write it all down, (for example, there are several ways to solve problems in functions, and the mathematics teacher can memorize them for you without reading the handouts, and there are ...... equal differences, equal ratios.)You will eventually fall in love with this little book, and you have to focus on reviewing this book before the college entrance examination, and you have to read the wrong questions;

2. In addition to mastering the basic knowledge, you will find that there are always so many question types that the teacher has talked about and taught, and there are hundreds of workbooks that you never get tired of, and even some of them are questions that you have done wrong, and then find a notebook and write them down, the original question + idea + plus the correct answer. Because sometimes the math problems in the college entrance examination are simple, and you just go straight to them.

3. If you have mastered all of the above, I can only guarantee that you will pass the math Because if you want to improve, you must continue to do problems to broaden your thinking, so the teachers should actively complete the problems you do, and you have the time and energy to do other problems. ps: After the third year of high school, you will do a paper similar to the college entrance examination, it is recommended that you do the simple ones first, and then do the last question of each big question, if you do all the simple questions correctly, you are guaranteed to score 130 points.

You should have a perfect score of 150, right? ）

Finally, work hard, the more you learn mathematics, the more you love mathematics, if you learn mathematics well, are you still afraid that the total score will not be high in the end?

Listen well in class, especially what the teacher repeatedly emphasized.

Memorize and understand concepts.

Get the knowledge out of the book.

First of all, there should be no psychological fear of mathematics, and then there is an interest in its immortality. You can take a look at the textbooks first, especially the example questions in the book are more important, remember more knowledge points, the teacher should organize his notes during class, look at the points diligently, and the review in the third year of high school is the total review material The things in the materials must be mastered well, and there should be no problem if you understand them. Another thing is to organize all the mistakes into a book and read them often, so as not to make the same mistakes in the future.

One set of questions per day is guaranteed for 100 days before the college entrance examination. One hundred and twenty points in math is fine.