In section 2, the function of physics exercise class, the limitation of traditional teaching mode and the necessary of inquiry teaching in the senior high school have been discussed.
第二部分首先论述了习题课教学在高中物理教学中的作用及传统教学方式在物理习题课教学中的缺陷，阐述了高中物理习题课采用探究式教学的必要性。
Trigonometric function is one of the most important contents in maths in senior middle school. New teaching material was abridged in the base of original teaching material.
三角函数是高中数学重要的内容之一，新教材在原教材基础上作了缩简。
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