高中数学三角函数概念教学的研究
Research on the Concept Teaching of Trigonometric Function in High School Mathematics

三角函数是高中数学教学中较难的章节，同时也是解题中非常重要的函数之一。三角函数在数学及其他科学中应用非常广泛。如高考物理解题中也常用其表达。同时，它也广泛应用于日常生活之中。正因如此，在高中阶段学好三角函数及其应用对学生来讲是重中之重的任务，我们也应对于其在解决实际问题中的重要作用深有体会。三角函数是高考热门考点，其重点主要包括：三角函数辅助角公式，正、余弦函数，正、余割函数，正、余切函数的图象和性质，三角函数的最值问题，三角函数解不等式中的应用等。
Trigonometric function is a difficult chapter in high school mathematics teaching, and it is also one of the very important functions in solving problems. Trigonometric functions are widely used in mathematics and other sciences. Such as college entrance examination physics problems are also commonly used in the expression. At the same time, it is also widely used in daily life. Because of this, it is a top priority for students to learn trigonometric functions and its application in high school. We should also have a deep understanding of its important role in solving practical problems. Trigonometric function is a popular subject in the college entrance examination, which mainly includes: trigonometric function auxiliary Angle formula, positive and cosine function, positive and cosecant function, positive and cotangent function image and property, trigonometric function maximum value problem, trigonometric function solution inequality application and so on.