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国家新课程标准中,对义务教育阶段的数学课程有这样的说明和要求:让学生亲身经历将实际问题抽象成数学模型并进行解释与应用的过程,进而使学生获得对
In the national new curricular standard, there is such a statement and requirement for the math course in the compulsory education phase that students are to experience the process of abstracting the practical problem into a mathematical model and explaining and applying it,