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通过对常见计算错误的剖析,我发现造成错误的一个重要原因是学生不重视对计算题进行认真的观察,分析,因此,教学中应引导学生对计算题观察分析,了解题目全貌,掌握题目结构特征,发现题目中一些隐含条件,选用合理、灵活、简便的方法计算。一、分析计算结构,找出解题关键。学生解答结构简单的计算题,正确率一般都比较高;解答结构复杂,知识覆盖面广的计算题时,错误就多一些。所以在计算前要重视对计算题结构的分析,灵
Through the analysis of common calculation errors, I found that one of the major causes of errors is that students do not pay attention to the careful observation and analysis of calculation questions. Therefore, students should be guided in observation and analysis of calculation questions, understand the whole picture and grasp the structure of topics Features, found some hidden conditions subject, use a reasonable, flexible and easy way to calculate. First, analysis and calculation of structure, find the key to solving problems. Students answer the simple structure of the calculation questions, the correct rate is generally higher; answer complex structure, knowledge of a wide range of calculation questions, the error is more. Therefore, before the calculation should pay attention to the calculation of the structure of the analysis, spirit