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三解函数式的化简、求值和证明中一般都要首先运用三角公式对三角函数式进行恒等变换,而学生解题时不能灵活地运用所掌握的公式,往往会感到无从下手,或者使解题过程变得较繁琐。因此,如何提高学生对三角函数式的恒等变换能力,是我们三角函数教学中的一个主要的内容。我在教学中注意讲清并要求学生掌握公式的内容及其变形,在此基础上,选择典型例题进行剖析,着重讲解如何灵活运用公式,掌握解题技巧,随后辅之以适当的习题。学生既巩固了所学知识,活跃了思维,又提高了解题的兴趣。下面谈谈我的一
In the simplification, evaluation and proof of the three solution function, the trigonometric formula is first used to carry out the equal transformation to the trigonometric function formula. However, when the students can not flexibly use the formulas they solve, they often find themselves unable to start or Make the problem solving process more complicated. Therefore, how to improve students' ability to transform identities of trigonometric functions is one of the main contents of our trigonometric function teaching. In my teaching I pay attention to clarify and require students to master the contents of the formula and its deformation, on this basis, the choice of typical examples to analyze, focusing on how to flexibly use formulas to master the problem-solving skills, followed by supplemented by appropriate exercises. Students not only consolidated their knowledge, active thinking, and raised interest in solving problems. Here to talk about my one