I want to re study math and start junior high school

Fractions and the comparative size of fractions, simplification of complex fractions, unary inequalities, properties of inequalities, equations (from one to three to two), circles, arcs, radians and angles, types of sectors, quadrilaterals, triangles and their special properties, finding the perimeter and area of regular geometric figures, trigonometric functions, chord tangent angles of circles, circumferential angles, central angles of circles, functions (primary functions, proportional functions, inverse proportional functions, quadratic functions such as parabolas), scientific notation, multiplication, Solving the greatest common divisor or least common multiple, factoring, irrational numbers, decimals, absolute values, square operations, proportions and the application of proportions in geometry, geometric plotting, and so on.

Middle school mathematics mainly includes two aspects, one is algebra and the other is geometry. Algebra is the use of letters to represent formulas, theorems, etc., that summarize regularities. Geometry is predominantly planar geometry.

Several common geometric figures, such as straight lines, line segments, parallel lines, triangles, squares, rectangles, parallelograms, circles, etc. The other is the combination of numbers and shapes, that is, the combination of algebra and geometry. This lays the foundation for high school math.

In fact, the quality of mathematics in primary school does not have much impact on mathematics performance in junior high school.

After all, you know how to calculate. When I was in junior high school, I listened carefully to every lesson and thought positively. The grades will be good, and you won't need to spend a lot of time outside of class. That's what I do anyway.

Everything you learn in the first year of junior high school is very basic, so I suggest that you read the books from your previous junior high school a few times, and then buy 1 resource book.

I started to learn functions in junior high school, and I think the functions in junior high school are not difficult, as long as you listen carefully, you will understand.

The first 3 is a lot of synthesis. This is the time to buy more information books and understand the most basic knowledge. Then start from easy to difficult step by step.

Having that kind of thinking is a good start.

When I was in junior high school, I didn't score 50 in English in one of the three years.

The only one who took the 60 test was still copied.

But after a year of review, be a good person.

I got an 89 in EnglishThe maximum score is 100

So, you have a chance to study hard. Let's talk about your study method.

The math is simple.

Tell me about my math method.

Second: Learn to pay attention to methods.

Third: do the question (not to say the sea of tactics, but you still need to do a certain amount).

Fourth: After doing the questions, I must learn to summarize, and I will have my own memorized questions, typical questions, and methods of doing the questions. It's all summed up in their own books.

Fifth: Different questions have different ways.

Multiple choice questions should be fast and accurate, in short, the choice and fill in the blanks should be written quickly, if you are not good or slow to do the questions, then you have to learn to give up, the last question is often difficult, if it is difficult for you to get this score, then you had better give up. Spend the last question on other marks that you are sure you will get.

Finally: grasp the basics, the basics account for 80 100, so it is easy for you to take the basic score and take the test of seventy or eighty.

Listen well. As for how to teach you how to learn math well, then I will have to take the textbook and teach you for a few days. Give me 2 months as long as you are obedient, I will give you a string of math, and the test is 70 100 easily (but the tutor is charged).

There's no need to look at elementary school.

Just look at it at first.

Let's take a look at functions and geometry.

If you think about it, you will suddenly be enlightened.

Have faith. Believe in yourself.

I'll give you a few questions first:

It is known that the parabola Y ax2 bx c intersects with the x-axis at two points a and b, and at the y-axis at the point c, where the point b is on the positive semi-axis of the x-axis, the point c is on the positive semi-axis of the y-axis, and the length (ob1) of the line segment ob and oc is the coordinates of a, b, and c.

2) Find the expression of this parabola;

3) Connect AC and BC, if the point E is a moving point on the line segment AB (which does not coincide with the point A and the point B), cross the point E as EF AC to cross BC at the point F, connect CE, let the length of AE be m, and the area of CEF be S, find the functional relationship between S and M, and write the value range of the independent variable M;

4) On the basis of (3), try to explain whether there is a maximum value of S, if so, request the maximum value of S, and find the coordinates of E at this point, and judge the shape of BCE at this time; If not, please explain why

As shown in the figure, the trapezoid is in the plane Cartesian coordinate system, the upper bottom is parallel to the axis, the lower bottom is at the point, the point (4, ) point, 1) find the analytical formula of the straight line; (2) If the coordinates of the point are , the moving point starts from and moves along the edge to the point at a speed of 1 unit second (the point can coincide with the point or the point), and the area of is found (the functional relationship that changes with the motion time of the moving point and the second (write the range of values of the independent variable);

3) Under the condition of (2), when seconds, the point stops moving, and the line intersects with the axis at the point and the other moving point starts from and moves along the sides of the trapezoid at a speed of 1 unit second, that is, from to , then from to , then from , and finally back to (the point can coincide with the vertices of the trapezoid) Let the motion time of the moving point be seconds, and the point is any point on the line (the point does not coincide with the point), and in the whole motion process of the point, find all the values that can make and equal to

I think that the most important thing in junior high school math is to think, to understand the definition, that is, the formula, and to use it flexibly.

Forgot all about elementary school? So how are you still messing around?

You don't have to learn in elementary school.

In junior high school, students learn Ha functions (equations are also functions) and geometry.

Buy a book and start from scratch, you may not know all the questions in elementary school.

If you were very good before, then you will almost remember it all after two glances

Go to the library or Xinhua bookstore and turn out the math textbook to read it...

It's been many years since I graduated from junior high school, and I don't remember much about some things, and I hope there will be something useful for you.

Junior high school mathematics does not cover a wide range of aspects, and should include some basic formulas, probability, functions, and geometry, among which geometry and functions account for a large proportion and are more important.

Personally, I think that the difficulty of junior high school mathematics is not great, if you want to learn well and achieve good results in the high school entrance examination, knowledge mastery is basic, and more important and more difficult is the formation of a kind of thinking, the grasp of various problems. In junior high school mathematics, more research and more problems, it is best to summarize the rules, and communicate more with the teacher. If the teacher is good, contact the teacher more, and the teacher will help you solve a lot of confusion.

Junior high school learning is not too intense, the difficulty is not too great, if you want to learn well, you must have results, and the type of questions in the high school entrance examination is relatively fixed, and there is more time to solve the remaining problems in the review stage, so you must have the awareness of hardship, but don't be too stressed.

Junior high school mathematics is not very difficult, understand the example questions in the textbook thoroughly, the results of the test are good, usually do more exercises, encounter something you don't understand, you should actively ask questions, solve it with teachers and classmates, develop a good habit, common question types in junior high school, there are many on umfun (excellent full score), you can go to see, understand it

Read the example questions in the textbook, do more practice questions, solve them chapter by chapter, and believe that you can do it.

I think we should start with the basics.

The junior high school is divided into geometry and algebra, and it is recommended that you start with algebra

In my understanding, mathematics is largely about interest. You only have 50 60 points now, and it will be very difficult to work hard to get to 130 points, but if you want to score around 100 110 points, you should still have a lot of hope. Middle school math is mainly about algebra and plane geometry, and if you are basically poor, it is more difficult to get started with geometry.

In algebra, in addition to rote memorization of all algebraic formulas, the most important thing is to understand the derivation of formulas, which is also necessary in high school. In geometry, all axioms and theorems must be memorized, but how to use them can only be familiarized by doing problems. And the problem must be done in a directional way, that is, the kind of problem that is based on certain formulas or theorems.

If you can grasp the psychology of the questioner, then you will be able to have a corresponding idea immediately when you start the question. Even if you can't finish it sometimes, as long as you have the right idea, the process of doing the question (especially the proof question) will be scored.

In addition, we should pay attention to the speed of doing the questions, the speed should be slow but not slow, too fast is easy to cause mistakes, and repeated checks are too inefficient; If the speed is too slow, it is absolutely not good during the exam, and half of the questions have not been completed at the end of the exam, and the points that should be scored in the back have not been obtained, and the score of the later questions is greater, and it is not worth it.

Students, learning mathematics is a process of accumulation, we must study seriously but also learn happily, and we can't push ourselves too much, which will have the opposite effect. Happy studying.

There is no can't do it, only whether you can do it or not!! There's nothing impossible and can't do!! Coming to the first 3, it means that there is still a year to go, so what to do.

Starting from the math textbook in the first year of junior high school, I don't care if it's difficult, don't do it simply, just do what I can master but I haven't mastered!! I suggest you take a look at Li Xiaopeng's blog, or if you have the economy, buy his systematic learning method.

ps I have won the first prize of the National Mathematics Competition many times, and if you don't understand, you are welcome to continue to ask questions!! I think your schedule should be like this, although the summer vacation is still a few days away, but you can't waste these few days, you should use these few days to make a plan and think about how to study!

Listen to me, you have to have confidence, mathematics is not like Chinese, English needs to be accumulated for a long time, each stage of knowledge is not very related, the third year of junior high school is mainly geometry, as long as you work hard for a period of time, it will soon be effective, do not lie to you, geometry needs to do problems, and accumulate, it is best to have a wrong question book, the basic question type is very good to do, the problem is not difficult, in short, work hard.

Be ruthless, do more questions, start from the simple, cultivate interest and self-confidence, and gradually increase the difficulty, it is impossible to learn mathematics well in a short time, and it takes long-term training.

There is no silver bullet for immediate results, so let's start with the basics, starting with the mathematics of the first year of junior high school, and don't just ask.

Be ruthless, do more questions, don't be sloppy, and on the eve of the exam, study carefully.