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《数学课程标准》中指出:“教学中要积极引导学生对这些规律性知识进行探讨,自觉应用,并在应用中加以巩固。”通过应用,能让学生感受到数学规律的确定性和普遍适用性,提高计算能力。然而,在应用运算律进行计算时,学生却往往存在一些错误或问题。本文旨在分析这些错误或问题,并根据本人的教学实践和学生特点及知识特征提出切实可行的教学对策。
“Mathematics Curriculum Standard” pointed out: “Teaching should actively guide students to explore these regularities, consciously apply and be consolidated in the application. ” Through the application, allowing students to feel the certainty of mathematical laws and Universal applicability, improve calculation ability. However, students often have some mistakes or problems in applying the law of calculation. The purpose of this paper is to analyze these mistakes or problems and to put forward practical teaching strategies according to my teaching practice and students’ characteristics and knowledge characteristics.