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本文选取我国代表性的7个版本的初中数学教材,对其不等式内容的广度、深度、例习题的难度进行定量刻画和定性分析,最后,在研究结论的基础上提出一些教学建议.一、研究的背景和意义数学教育国际比较研究(如IAEP,TIMSS,PISA等)表明,课程和教材对学生的学习和成就有重大影响.该项研究显示:“学习机会”是影响学生数学成就的一个重要因素,而课程设计与教材编写又是影响“学习机会”的一个重要因素.我国《义务教育数学课
In this paper, seven representative versions of junior high school mathematics textbooks are selected to quantitatively characterize and analyze the degree of inequality and the difficulty of the exercises. Finally, some teaching suggestions are put forward based on the conclusion of the study.First, Background and Significance International comparative studies in math education (such as IAEP, TIMSS, PISA, etc.) show that curricula and textbooks have a significant impact on students’ learning and achievement. The study shows that “learning opportunities” An important factor, and curriculum design and textbook compilation is an important factor that influences “learning opportunity ” .In our country, "compulsory education math class