摘 要教材作为课程目标与教学内容的具体表现，是教师与学生之间交流的主要凭借。本文选择了中国浙教版和美国的McGraw-Hill版初中数学教材的三角形内容作为研究对象进行了研究。

研究采用的主要研究方法有文献分析法，内容分析法、统计分析等，从内容选取与编排顺序、内容难度等方面对两个版本初中数学教材中的三角形内容进行了比较研究。首先，通过比较中美两国教材的外观、教材的设计特征、体例结构和教材目录的比较，实现在内容选取和编排顺序方面的比较。其次，课程难度将从课程广度和课程难度两方面进行研究，将用“知识点”的多少进行量化来展示课程广度，用教材中各认知水平上的知识点数量来展示课程深度。主要研究结论如下：90090

（1）中国教材的页面排版紧凑，可供学生使用的空余处较少，而美国教材页面有不少空余部分可供学生使用；

（2）中国教材的章头图更注重展示与本章内容相关的生活情境，而美国教材章头图主要展示本章的学习目标及本章知识的实际用途；

（3）中国教材更注重对新知识的拓展和延伸，而美国教材更注重旧知识的复习；

（4）中、美两国教材在内容上都是按照从特殊到一般的逻辑顺序编排；

（5）在三角形的内容广度和内容深度方面，中国教材略高于美国教材；

基于研究结论，对我国初中数学教材的编写提出以下建议：（1）丰富教材内容，增加教科书的色彩和趣味性，激发学生兴趣。（2）在新课前增加与本节课相关的旧知识点回顾，增加前后内容的衔接。（3）增加学生动手操作的课程，充分发挥学生学习的主观能动性。（4）适当增加推理水平的例题，更注重学生创新思维的培养。

毕业论文关键词：初中数学教材；三角形内容；中国；美国

ABSTRACT Textbook curriculum goals and teaching content of specific performance is mainly by virtue of the exchange between teachers and students。 This, China and the United States of McGraw-Hill junior high school mathematics textbook study the triangle as object of study。 

In this study, the main research methods literature analysis, content analysis, analysis, statistical analysis, for example, select from the content and layout order of difficulty, content of the two versions in junior high school mathematics textbook comparative study on the contents of the triangle。 First, the appearance of the comparison between Chinese and American teaching materials, materials design characteristics, comparison of style and structure and list of materials to achieve in terms of content selection and chronological order。 Second, the difficulty of course from the course studies both breadth and difficulty of course, this article will use "knowledge" to show to quantify how much breadth courses。 The main conclusions are as follows: 

(1) Chinese textbook page-layout is compact, less available to students free, while the United States textbook pages have many spare parts are available for student use; 

(2) Chapter of the textbook in China pay more attention to the show associated with this chapter of life situations, United States textbook chapters displayed in this chapter learning objectives and the actual use of knowledge of this chapter;

(3) Chinese textbook in learning new knowledge and pay more attention to the content of expansion and extension, and the United States pay more attention to the old knowledge of teaching materials review; 

(4) in terms of breadth and depth of content of a triangle, Chinese teaching materials is slightly higher than United States teaching materials; 

(5) in terms of examples, it is difficult, on China concerning operation and reasoning level lower than the United States;