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有理数运算不仅是七年级的初始内容,也是初中数学的重要基础.然而,刚刚升入初中,负数的引入,再到有理数的运算,给七年级学生的数学学习带来了不小的冲击,学生的有理数运算问题也一直困扰着数学教师.本文拟谈谈七年级学生在有理数运算中的错误类型,并辅以案例来做具体的说明.一、解题错误的主要类型有一种简单的认识,以为错误都是知识不过关造成的,其实,解题错误的类型不止一种,在知识过关的情况下也会出现差错.既然成功的解题有知识因素,能力因素,经验因素和情感因素,那么不成功或失败的解题也会与这些因素相关,我们总结为:知识性错误、逻辑性错误、策略性错误和心理性错误.
Rational number operation is not only the initial content of the seventh grade, but also an important basis for junior high school mathematics.However, just entering junior high school, the introduction of negative numbers, to the rational number of operations, to the seventh grade mathematics learning has brought no small impact on students The problem of rational numbers has also plagued mathematics teachers.This article intends to talk about the seventh grade students in the rational number of errors in the type, supplemented by a case to do a specific explanation.A, the main types of error-solving has a simple understanding, In fact, there are more than one type of problem-solving mistakes, and mistakes will occur in the case of knowledge pass-through.Although there are knowledge factors, ability factors, experience factors and emotional factors in the successful problem-solving, Then the unsuccessful or unsuccessful problems will also be related to these factors, we conclude as: knowledge, logic, strategic and psychological errors.