三角函数一直是高中数学的重点,也是一个难点,许多学生学不好数学,觉得三角函数方面的知识太难理解,其实只要学生认真学习,三角函数解题还是有规律可循的。从三角函数的图象和性质出发探讨如何实现教学的有效性。 Trigonometric function has always been the focus of high school mathematics, but also a difficult point, many students learn mathematics, think the trigonometric function of knowledge is too difficult to understand, in fact, as long as the students seriously study, trigonometric function problem-solving or there are rules to follow. How to Realize the Effectiveness of Teaching from the Image and Nature of Trigonometric Function.