三版初中新数学教材“几何图形初步”内容比较研究

A Comparative Study of the “Preliminary Geometric Figures” Content in Three New Editions of Junior Middle School Mathematics Textbooks

摘要: “几何图形初步”是小学直观几何迈向初中系统几何的过渡章节，是初中数学几何板块的基础。本研究选取人教版、北师版和华师版三个版本新教材的“几何图形初步”内容为分析对象，采用比较分析法与访谈法，深入对比章首页设计、内容编排、概念呈现、数学文化融入及例习题设置等多维度，并提出适当调整教学顺序、合理利用数学史、借鉴多版优势，灵活组织内容、创设真实情境、注重新旧知识衔接的建议。

Abstract: “Preliminary Geometric Shapes” is a transitional chapter from elementary school intuitive geometry to junior high school systematic geometry, and is the foundation of junior high school mathematics geometry. This study compares the “Preliminary Geometric Figures” chapter in three new junior middle school mathematics textbooks (People’s Education, Beijing Normal University, and East China Normal University editions). Through comparative analysis and interviews, it examines chapter design, content organization, concept presentation, integration of mathematical culture, and example-exercise systems. The paper concludes with recommendations on optimizing teaching sequences, utilizing mathematical history, and enhancing contextual learning to strengthen knowledge coherence.