What should I do if I don t have patience to learn math? And it s only the second year of junior hig

1.Be more careful (observe special cases), go deeper (understand the common test points in the questions), and be more proficient.

2."Summarizing" is the best way to make fewer and fewer topics.

3."Diligent study" is the foundation, and "good questioning" is the key.

4.Think of "doing homework" as an exam and "exams" as doing homework.

Hehe, I'm from the past, you have to pay attention to our education is exam-oriented education. Mathematics is about seeing more problems and solving more problems. When you finish solving a math problem, you need to summarize the rules, and you will be able to solve the same type of problem again in the future. Naturally, math is not difficult.

Maybe you think it's more difficult to get the following, but it's very simple when you master it, try to ask your classmates who are good at learning If you're embarrassed, you can write down or cut the question and send it to me My email Try to teach you.

Friend, don't worry, I don't have much patience in math either, but as long as you ask the teacher more questions, when you solve a problem, your interest in learning math will be greatly improved, and your grades will also increase, come on!

Mathematics is actually very simple, do a good job of problem sea tactics, you will be able to do any problem, the key is that you must be interested in mathematics in your heart, and slowly cultivate it

Interest is the best teacher It is recommended to read some extracurricular books on mathematics.

For junior high school students, three functions are learned: 1primary functions; 2.

inverse proportional functions; 3.Quadratic functions. Learning each function requires students to memorize the images of each function, which is conducive to mastering the properties of the function.

For a primary function, such as y=kx+bk, b is constant, and k≠0, its image is a straight line, so that students can make it clear that b is the ordinate of the intersection of the image and the y-axis, and in particular, when b=0 is a straight line through the origin. When k > 0, the image rises from left to right, and when k < 0, the image descends from left to right. Conversely, knowing the values of k and b, the approximate position of the image can be determined.

Learning every bit of knowledge should make students realize that this part of the knowledge is useful, so strengthening the connection with real life is another way to learn the knowledge of functions. A typical example of a primary function: the relationship between distance s and time t with constant velocity v:

s=vt, s is a primary function of t; Example of an inverse proportional function: the relationship between speed and time is inversely proportional when the distance is constant; Example of quadratic function: the length of a rectangle is twice the width, and the functional relationship between the area s of this rectangle and the width x is s=2x2, and s is a quadratic function of x.

Factorization

Factorization is the form of multiplying a polynomial into several integer products. Factorization is the basis of identity deformation, which plays an important role as a powerful tool in mathematics and a mathematical method in solving problems in algebra, geometry, trigonometry, etc. There are many methods of factorization, in addition to the method of extracting common factors, formula method, group decomposition method, cross multiplication method, etc., which are introduced in middle school textbooks, there are also methods such as using split terms to add terms, finding root decomposition, commutation, pending coefficients, etc.

Pending coefficient method

When solving a mathematical problem, if the result is first judged to have a certain definite form, which contains some coefficients to be determined, and then the equation about the coefficients to be determined is listed according to the conditions of the problem, and finally the values of these coefficients are solved or a certain relationship between these coefficients is found, so as to solve the mathematical problem, this method of solving the problem is called the method of undetermined coefficients. It is one of the commonly used methods in middle school mathematics.

Answer: Junior high school functions are not difficult, you need to have the confidence to learn it well.

The analytic formula of the function should be studied in conjunction with its coordinate system image.

Analytic formula for all functions in junior high school:

Primary function: y=kx+b; (k≠0, b is constant); It's not just a straight line.

Inverse proportional function: y=k x; or xy=k; (k≠0) is not a two-curve (hyperbola).

quadratic function: y=ax +bx+c; (a≠0) is not just a parabola.

Acute trigonometric function: sine function y=sin x; Isn't it a right triangle, the relationship between the angle and the edge.

cosine function y=cos x;

tangent function y=tan x;

cotangent function y=cot x;

You are determined to understand two in a week, and you can learn well in half a month.

How to learn: Understand the content of the book. Every time the homework assigned by the teacher is to be completed on time and really understand. Do more when you have time.

Title. I don't know how to ask my classmates, teachers, or know.

Don't rush, don't worry.

1.Down-to-earth source.

From the first year of junior high school, the basic concepts in the math book and the exercises in the book are the easiest.

2.From simple to difficult, the simple will be like climbing stairs, there is a certain foundation, there will be no blank, no way to start.

I'm also a beginner

2. The most important thing in mathematics is to be serious.

Zhi listens to the class, follows the old teacher's train of thought, repeatedly understands, understands the specialization, and then completes the work, basically there is no problem In addition, if you have any questions, you must ask the teacher, don't be shy or anything, or ask your classmates, you can understand every question you do, and science is the exercise of thinking.

Are you willing to suffer?

Can you memorize formulas?

If you can, ask me.

I can explain it to you.

In mathematics, it is not difficult to memorize formulas and apply them.

The triangle is based on AP, and the ordinate value of point b is high, then there is:

1/2×|m-(-1)|×3=3

m+1|=2

m+1=±2

m+1=2, or m+1=-2

m1=1,m2=-3

First of all, draw the diagram, draw l1, and draw a straight line through the x-axis at the point b, and the intersection point is ps apb=1 2 |ap|×h

where the ap edge is the bottom, the height is the perpendicular line of the b bottom.

From the coordinates of b, we can see that h=3 and |ap|=|m-(-1)|So s apb=1 2 |m-(-1)|3=3 so |m+1|=2 so m=1 or m=-3

First of all, you have to draw a diagram to represent point A and point B, and connect them, because the ordinate of point P is zero, so it is on the x-axis, so the length of AP is "M (the abscissa of point P) minus (-1) (the abscissa of point A) is the absolute value, that is, M+1" This is the bottom of APB, and the height is 3 (the ordinate of point B), multiply and divide by 2 to equal 3, solve 2 values, calculate it yourself.

In addition, I am not bad at math, and I am approached if I have questions: junior high school math, especially functions, is a little difficult at first, but it will get better slowly. come on

Answer: It is not difficult to learn a function in junior high school, and you must have the confidence to learn it well.

The analytic formula of the function should be studied in conjunction with its coordinate system image.

Analytic formula for all functions in junior high school:

Primary function: y=kx+b; (k≠0, b is constant); Isn't it just a straight imitation round line?

Inverse proportional function: y=k x; or xy=k; (k≠0) is not a two-curve (hyperbola).

quadratic function: y=ax +bx+c; (a≠0) is not just a parabola.

Acute trigonometric function: sine function y=sin x; Isn't it a right triangle, the relationship between the angle and the edge.

cosine function y=cos x;

tangent function y=tan x;

cotangent function y=cot x;

You are determined to understand two in a week, and you can learn well in half a month.

How to learn: Understand the content of the book. Every time the homework assigned by the teacher is to be completed on time and really understand. Do more when you have time.

Title. I don't know how to ask my classmates, teachers, or know.