Through the comparison study of the trigonometric ratio parts in the teaching material of Shanghai and Japan, we can see that there’re differences in the consequence of the main content, the way of displaying, the concept of trigonometric and the construction of the main theorem caused by the differences in the curriculum systems and educational ideas of the two countries.% 比较并分析中国和日本“三角比”数学内容可以看到,它们在主要内容顺序、呈现方式、三角比概念和核心定理构建方面不尽相同,导致差异的根本原因是课程体系、文化和理念的不同。
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