一、代数与几何内容不同步,对重要的知识只强调其工具性近年来,中学数学教材作了一些删减,并调整了一些内容的顺序,例如将以前在初中的二次函数及一元二次不等式放到了高中,而将以前在初三代数中的《解析三角形》移到了高中。而另一个被教材编写者忽视了的问题是“正弦定理和余弦定理”,作为数学中的重要定理没有强调它们的内在联系,而只强调了它们的工具性。在立体几何中用到余弦定理时也只是偶尔亮相。我认为高中数学内容不应该只强调知识、内容．更要注重方法和过程,这样才能开启学生的思维,使学生树立正确的数学价值观。 First, algebra and geometric content are out of synch, emphasis on the important knowledge of its tools only. In recent years, the middle school mathematics textbooks have made some deletions, and adjusted the order of some of the contents, such as the previous quadratic function of the junior high school and one yuan two. The inequalities were placed in high school, and the “analytic triangles” that were previously used in the third-generation algebras were moved to high schools. Another problem ignored by textbook writers is “sine theorem and cosine theorem”. As an important theorem in mathematics, they do not emphasize their intrinsic connection, but only emphasize their instrumentality. When cosine theorem is used in solid geometry, it only appears occasionally. I think high school mathematics content should not only emphasize knowledge and content. More attention should be paid to methods and processes so as to open the students’ thinking and enable them to establish correct mathematical values.