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在简单应用题的教学中,为了使学生更好地掌握四则运算的意义和常见的数量关系,必须加强算理训练,要求学生说出列式理由,正确选择算法,培养学生有根据的、有条理的分析推理的能力,提高学生运用数学语言的口头表达能力,为进一步解答复合应用题打下基础。简单应用题的算理训练有两种:其一,紧扣运算意义讲算理。其二,抓住数量关系讲算理。现将十类简单应用题算理的讲法,列表举例于后,供参考。
In the simple application of teaching, in order to enable students to better grasp the meaning of the four operations and the common relationship between the number, we must strengthen the training of mathematics, require students to say the reasoning of the column, the correct choice of algorithms to develop students based on the The ability of reasoning and reasoning to improve the students' ability to use the verbal ability of mathematical language to lay the foundation for further answer to the problem of compound application. There are two kinds of arithmetic training of simple application questions: First, the arithmetic meaning of computing. Second, to grasp the relationship between quantity and reasoning. Now ten kinds of simple application arithmetic argument, the list after the example for reference.