人教A版新旧教材“基本不等式”一节内容的比较研究

A comparative study on the contents of the"fundamental inequalities":section of the new and old textbooks in the A edition of People's Education Press

为了探索人教A版新旧教材“基本不等式”一节内容的变化情况,采用文本分析法从2003版和2017版课程标准要求、教材编排顺序、呈现情境、例习题4个方面进行比较分析.研究发现,新版课标更突出在真实情境中运用“基本不等式”,新教材将“基本不等式”的编排位置提前,优化后的情境能够直奔核心内容,例习题数量增多且示范性有所增强.据此,提出应重视真实情境的创设、强化知识的联系和注重类比思维的培养、避免使用不明确的问题引导探索、注重习题的数量和层次性等教学建议.

In order to explore the changes of the"fundamental inequalities"section in the new and old textbooks of the A edition of People's Education,text analysis method was used to compare and ana-lyze the curriculum standard requirements,arrangement sequence of teaching materials,presentation sit-uation and example exercises between the 2003 edition and the 2017 edition.The study found that the new version of the curriculum standards was more prominent in the use of"fundamental inequalities"in the real situation,the new textbooks advanced the arrangement of"fundamental inequalities",the opti-mized situation went straight to the core content,the number of example exercises increased and the demonstration was enhanced.Therefore,some teaching suggestions are proposed,such as attaching im-portance to the creation of real situation,strengthening the connection of knowledge,paying attention to the cultivation of analogical thinking,avoiding the use of unclear questions to guide exploration,and paying attention to the number and level of the exercises.