Comparative Analysis of Exercise Difficulty in Triangle Sections of Chinese and Vietnamese Junior High School Mathematics Textbooks

In order to improve the quality of mathematics education, optimise the level of textbook writing and promote cultural exchange between China and Vietnam, this paper selects the junior high school mathematics textbooks of Zhejiang Education Edition in China and Kite Edition in Vietnam as the research objects, and uses the comprehensive exercise difficulty model to compare the difficulty of exercises in the "triangle" section of the textbooks from both countries. The research results show that there is no significant difference in the overall exercise difficulty between the two versions of the textbooks, and both exhibit a distribution characteristic of relatively high exploration and reasoning factors, followed by computation factors and knowledge content factors, with the background factor being the lowest. However, in terms of the computation factor, the Zhejiang Education Edition places more emphasis on "symbolic computation", while the Kite Edition tends to favor "numerical computation" in comparison. These research findings can provide certain references for the two countries in the compilation and use of examples and exercises in mathematics textbooks.