8. To develop good calculation and inspection habits and improve calculation ability, learning mathematics is inseparable from calculation. Junior high school teachers often calculate step by step on the blackboard. Due to the limited time and large amount of calculation, senior high school teachers often leave the calculation to students, which requires students to use their brains and work harder, not only to write, but also to be articulate and unfocused. For complex calculations, they should be patient, master calculations and pay attention to simple methods. 9. Develop good problem-solving habits and improve thinking ability. Mathematics is the gymnastics of thinking, and it is a discipline with strong logic and rigorous thinking. Cultivating and standardizing problem-solving habits is an effective way to improve the expression ability of words, symbols and graphics, and mathematical language is the basis for developing thinking ability. Therefore, we should gradually lay a solid foundation and improve our thinking ability. 10, to develop the habit of reflection after solving problems, improve the ability to analyze problems. After solving the problem, we should get into the habit of reviewing the following questions without losing time: how do we analyze association and explore the method of solving the problem in the process of solving the problem? What is the key to solving the problem? What difficulties have you encountered in solving the problem? How to overcome it? In this way, through the review and reflection after solving the problem, it is helpful to find the key to solving the problem and extract mathematical ideas and methods from it. If we ignore the excavation of it, the ability to solve problems will not be improved. Therefore, after solving a problem, we must always sum up the law of the problem and the solution. Only by diligent reflection can we "stand on the mountain, see far and control the overall situation" and improve our ability to analyze problems.