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三角函数是高中数学学习过程中的重要模块之一,从函数角度来说,这一章节内容是介于初等函数和高等函数之间的一类特殊函数。高中阶段涉及到的三角函数可以分为以下几类,即:正弦函数、余弦函数、正切函数、余切函数、正割函数以及余割函数,这六种三角函数之间不是彼此独立的,而是相互之间存在密切联系、可以相互进行转化的关系。正是由于三角函数之间可以相互转化的特点,这一章节的知识应用往往比较灵活,学生在学习过程中往往很难把握解题规律,不容易找到解题突破口,在遇到相关类型题目时经常会茫然不知所措,以致造成这一章节内容成为高中数学学习难点之一的结果。下面,笔者就结合自身的教学经验来谈一谈高中生应该如何学习三角函数知识。
Trigonometric function is one of the most important modules in high school mathematics learning process. From a function point of view, this chapter is a special kind of function between the elementary functions and higher functions. The trigonometric functions involved in high school can be divided into the following categories: the sine function, the cosine function, the tangent function, the cotangent function, the secant function, and the cosection function. These six trigonometric functions are not independent from each other, Is closely related to each other, you can transform each other’s relations. It is because of the triangular features can be transformed into each other’s characteristics, the knowledge of this chapter is often more flexible application of the students in the learning process is often difficult to grasp the law of problem solving, not easy to find a solution to the problem, in the face of related types of topics Often overwhelmed, resulting in the content of this chapter as a result of high school mathematics learning difficulties. Below, I will combine their own teaching experience to talk about how high school students should learn trigonometric function knowledge.