目前,我国全日制中学教材,经过多次改编,对某些知识在教法上已进行改革,但这种改革没有带来教材本身的较大篇幅的精简。下面仅就高级中学数学课本《代数》第一册(甲种本)(以下称甲种本第一册)中三角函数部分诱导公式的改革与精简谈一点建议。 一、关于诱导公式的教学现状 现行甲种本第一册上,围绕诱导公式展开的内容 At present, China’s full-time secondary school textbooks have undergone several adaptations, and some knowledge has been reformed in the teaching methods. However, this reform has not brought about a concise stream of textbooks. The following is just a suggestion on the reform and streamlining of the trigonometric function partial induction formula in the first grade (first type A) of the mathematics textbook for senior middle schools. I. Teaching Status of Inducing Formulas The contents of the current Formula One book, which was developed around the induction formula