自己订阅的每期《中小学数学》高中版到手后,最先看的是封面的目录和封底的编后漫笔.看了《一个教学争论引发的思考》和《以课本为本才是好数学教学》后,感触颇深,下面也谈一谈自己的一些想法.三角函数辅助角公式,从20年前上乙种本开始到现在,已讲了数十遍,总感觉有一些学生掌握起来有一定困难,但又是学生应该知道的内容,特别是对于 Subscribe to each of the “high school primary and secondary mathematics version of the hand, the first look is the cover of the catalog and the back cover of the compilation.Viewed” a teaching controversy triggered thinking “and” text-based mathematics is good Teaching ", the feeling is deep, the following also talk about some of their own ideas.Calculation of trigonometric function angle formula, from the beginning of 20 years ago on the B class has been said a few dozen times, always feel that some students master it There is some difficulty, but it is something students should know, especially for