I just told you what my father did to me. Please adopt it if possible.
Reference method
From the current mathematics teaching, it is found that students' computing ability is getting lower and lower, and even simple calculations will make mistakes. In view of this situation, I analyzed the causes of students' calculation errors, and here is a brief introduction to the analysis.
It is common for students to make mistakes in calculation, and there are many kinds of mistakes. No matter what the teacher tells them, they will still make mistakes. To overcome these difficulties, teachers can find some regular problems from students' calculation errors, and analyze the causes of calculation errors, so as to nip in the bud and improve the calculation ability of primary school students soon.
Through understanding and investigation, the causes of primary school students' calculation errors are roughly caused by knowledge and psychology.
(1) Knowledge reason:
(1) The calculation of any number is always closely related to its corresponding knowledge. If the concept is unclear, the calculation is unclear, and the pen calculation is inaccurate, the calculation will be full of mistakes.
(2) Any question can be broken down into some basic oral calculation questions. If you are not familiar with oral calculation, you will make mistakes if you are not accurate in calculation. One step in the calculation will lead to the calculation error of the whole problem.
(2) Psychological reasons
In addition to knowledge, students' psychological reasons can not be ignored. At ordinary times, some students made mistakes in their homework. When the teacher found out, he suddenly realized that he was "careless". In fact, this is what we often say: students don't carefully examine questions. This is because students sometimes feel that the characteristics of things are not detailed enough and summarized enough to arouse students' interest when calculating. Sometimes when calculating, I always hope to get the result quickly. Therefore, when the data in the calculation problem is large, unfamiliar or the formula shape is too complicated, I will have rejection psychology, which is manifested as impatience, inability to carefully examine the problem and impatience to choose a reasonable algorithm, leading to calculation errors. Sometimes students' attention is not stable enough, they are easy to get tired in the face of some monotonous content, and the scope of attention is narrow, so there will be a phenomenon that they only pay attention to one thing and lose everything. Sometimes students are disturbed by fixed thinking patterns, and bad thinking patterns are manifested in analyzing new situations and solving new problems according to fixed thinking patterns. In terms of calculation, the original calculation rules and methods interfere with the mastery of new calculation rules and methods. Another reason is that under the influence of modern science and technology, calculators are used in mathematics teaching, and most students have calculators. Students don't think about it at all when calculating, and their computing ability will decline after a long time. There are also some students who blindly buy counseling materials, which have ready-made answers. Students have a dependent thinking when calculating, do not seriously analyze the questions and copy the answers. In this way, students don't use their brains at all, which also leads to a decline in computing ability. If teachers attach importance to analyzing the mistakes in scientific calculation, prescribe the right medicine and guide them from the front, students' computing ability will be gradually improved, thus forming good computing habits and exam habits.