三角函数是高中数学的一个重要知识点,是求解边长、面积、角度等众多题型的求解工具。但是,学生难以理解教师教学要点,教师不能把握学生学习困难症结所在,导致三角函数的教学过程中存在问题,影响教学效果。本文结合笔者三角函数的教学实践,根据学生学习过程中难以融会贯通的要点,浅谈高中数学三角函数教与学的实践和认识。 Trigonometric function is an important knowledge point of high school mathematics, is to solve the side length, area, angle and many other problem solving tools. However, it is difficult for students to understand the teaching points of teachers. Teachers can not grasp the crux of the students’ learning difficulties, which leads to problems in the teaching of trigonometric functions and affects the teaching effect. This paper combines the author’s trigonometric function teaching practice, according to the students learning process is difficult to get through the points, talking about high school mathematics trigonometry teaching and learning practice and understanding.