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How to improve junior high school students' mathematical calculation ability
In mathematics teaching, the correct rate of students' calculation has always been the main problem affecting students' grades. Many students always think that it is much easier to calculate problems than to analyze application problems, and they have a solid understanding of some laws and laws, so calculation is a breeze, so they are either too confident in calculation or unable to concentrate, resulting in many mistakes. In this year's teaching process, I paid special attention to the calculation practice, strengthened the calculation practice and improved the calculation ability. Thereby improving the grades of 20% students. In junior high school mathematics teaching, the topics related to calculation content account for more than 55% of a test paper. In this sense, it is a very important aspect of junior high school mathematics teaching to strengthen calculation teaching and effectively improve the correct rate of calculation. First, the significance and importance of calculation. 1, calculation is the cornerstone of learning mathematics, and you have mastered calculation. It opened the door to the kingdom of mathematics. In teaching practice, there is a phenomenon: although many students have mastered the calculation method, they often make mistakes in calculation, and the accuracy of calculation is very low. This not only directly affects the learning effect of application problems and application problems, but also seriously hinders the improvement of students' math scores. Therefore, it is necessary to effectively improve the accuracy of students' calculations. Numbers and calculations will accompany people's life. Basically, I have learned all the mathematical knowledge that a person needs when he is an adult. Therefore, learning the basic knowledge of numbers and calculation in middle school and forming a certain computing ability are lifelong benefits. Second, the reasons for the low calculation accuracy. 1. When students are asked to analyze the causes of wrong questions by themselves, the common mistakes are "wrong reading", "scribbling vaguely" and "not making a draft when calculating". There are only two aspects: on the one hand, students' psychological quality is not mature, on the other hand, they have not developed good study habits. Therefore, cultivating students' good study habits is the requirement of quality education and the premise of improving calculation accuracy. 2. At the same time, some students' calculation accuracy is not very high, which also reflects that their calculation ability needs to be improved (for example, they are not familiar with multiplication formulas and carry addition, etc.). ); It may be the lack of a good calculation habit, such as checking the calculation habit. Many students ignore the role of "estimation" in calculation. This may be related to our usual practice. Third, measures to improve the calculation accuracy. Teacher: 1. Timely adopt flexible methods to teach students in accordance with their aptitude: fill in gaps, make up mistakes, answer questions, distinguish situations, correct calculation errors and improve calculation accuracy. It is very necessary to cultivate students' good learning attitude and calculation habits, so as to improve the teaching quality. 2. Do a good demonstration and set an example. Teachers are role models for students. The blackboard writing performance in class conforms to the norms, so as to teach by example. Teachers who ask students to be teachers must be teachers first. 3. Always encourage them and persevere. It takes more than one time to develop good computing habits. It will take a long time. In order to insist on strict requirements, students must be constantly encouraged to recognize the strict requirements of teachers, and keep a lasting interest in the implementation of calculation norms, thus gradually forming habits. Student: 1, calculated in general order. Find out the meaning of the question, observe the characteristics of the question type and determine the operation order. 2. Develop the good habit of careful calculation. The data is clear. The drafts are arranged in a certain order. Don't blindly pursue high speed. Make mistakes slowly rather than excessively. 4. Specific method: 1. Strict calculation flow and calculation standard of draft specification are the guarantee to improve calculation accuracy. Students are required to standardize the calculation format, write neatly and correctly, and arrange homework and test papers. Draft is a necessary means for correct mathematical calculation, and many calculation errors are caused by scrawled drafts. The draft also requires students to write neatly and orderly, and do oral calculations as much as possible. Students are required to make a draft according to the usual requirements during the exam, and the test paper can be folded in half to make the draft correspond to the topic. This is conducive to students' self-examination in an orderly way, without wasting time rewriting drafts, checking directly, saving time and effort, helping to cultivate students' rigorous, meticulous, honest and serious work habits, overcoming the bad habit of littering drafts, and benefiting teachers. Help students to revise and adjust their future teaching. 2. Be strict and grasp the facts and details. In order to make students develop good computing habits, they must be strict, grasp the facts and details and persevere. Be strict, grasp the facts and details, persevere, and point out irregular mistakes in your homework in time. The calculation errors in the exam are not standardized, so it is necessary to comment in detail and teach methods in class; Open a "small kitchen" for students who make repeated mistakes. Conduct self-examination and mutual check on the implementation of calculation norms, and cultivate students' rigorous style of study irregularly. Cultivate students' habit of drafting correctly. At the beginning, students are required to correct the mistakes in the draft as carefully as homework. When students gradually develop habits, they will change the details into simple changes, change simplification into spot checks, and focus on students with bad habits. To sum up, the formation of students' good computing habits includes: first, strict requirements and training; Second, teach students some methods to make the calculation correct and effective; Third, actively educate and encourage students to establish their confidence in calculating correctly psychologically and try to calculate correctly in behavior. The formation of this learning mentality will certainly promote the improvement of students' calculation accuracy.