A Comparative Study of Junior High School Mathematics Textbooks between People's Education Press Version and Gyeonggi Province Department of Education Version: The Case of Similar Triangles

Similar triangles of junior high school mathematics textbooks from Chinese People's Education Press Version and Korean Gyeonggi Province Department of Education Version were selected for the study. The methods of literature study, content analysis and comparative study were utilized to compare the content of similar triangles in the two sets of textbooks from different aspects and dimensions. In the end, the study found that the People's Education Press Version was more complete in depth and breadth, but lacked interest, and the Gyeonggi Province Department of Education Version used the context well, but the knowledge content was relatively shallow.