Mathematics is a compulsory course for children at school, no matter at that learning stage, but some children can't do math problems for various reasons. Do you know how to do math problems? What kind of ability is needed to learn junior high school mathematics, which is the most important?

Junior high school mathematics knowledge

Mathematics is a compulsory course, but some children are not interested in it. What should I learn if I want to learn junior high school mathematics well and get high marks?

The importance of calculation

The stage that children face now: in the first stage, they will learn numbers and some simple and useful algorithms. Every knowledge point is inseparable from the study of calculation. Important knowledge points such as integers, equations and inequalities are all calculated based on rational numbers. Subsequent score calculation highlights the child's calculation problems.

Computational problems encountered by students

First of all, there are still many children who can't do many problems with symbols together. They are confused and don't know where to start.

What should we calculate first? We know the order of operations, but we ignore multiplication and distribution or other operations from beginning to end. Whenever children encounter the mixed operation of rational number addition and subtraction in class, they should first make clear three calculation principles: "from high to low, from left to right, from inside brackets to outside";

Mastering these basic calculation methods, and then carrying out targeted intensive exercises, children are no longer blindly calculating training, but retraining methods. This is very important! Because children have a purpose, not just brushing questions.

Secondly, due to the lack of calculation skills, some commonly used high-end methods can simplify the calculation process and improve the calculation accuracy.

For example, when calculating the sum of proportional series, it is meaningless to memorize the result formula. Once the reminder is changed, it is no longer a simple proportional sequence, and the child may lose points. But if the child understands that the depth deduction method is dislocation subtraction and calculates flexibly, he may have a good idea.

Finally, the steps to solve the problem are not standardized.

This paper takes solving equations, the most common kind of test questions that children are facing at first, as an example. Solving the equation is divided into five steps: denominator-brackets-shift term-merging the same term-coefficient is one. The error probability of each step is 15% to 25%.

Junior high school mathematics textbook

The above is what I introduced to you. If you want to get high marks in mathematics, how should you adjust your way? You all have different answering skills for what kind of questions. If you want to learn junior high school mathematics well, the key is to master learning methods.