如何构建物理高效课堂,是每一个物理教师应深思的问题。怎样才能上出高效课,如何实现物理课堂教学的高效率就是一个很值得探讨的课题。但笔者觉得高效课堂的前提必须有两个:第一、首先要研究好考试说明和课程标准,把握准正确的考试方向;第二、在考试说明的框架下好好选择典型例题与习题,只有这样才有可能达到教学的高效、课堂的高效,如果不在考试范围的知识,你在高效也是无效、甚至负效!本文笔者结合自己几十年的教学实践就如何选题谈谈自己的一点看法,从六个方面做了一些思考。 How to build a physics efficient classroom is a question that every physics teacher should think deeply. How to get effective lessons and how to achieve high efficiency in physics classroom teaching is a topic that is worth exploring. However, the author believes that there are two prerequisites for an effective classroom: First, we must first study the examination instructions and curriculum standards, and grasp the quasi-correct examination direction. Second, we should carefully select typical examples and exercises under the framework of examination instructions. It is possible to achieve efficient teaching and efficient classroom. If you are not in the scope of the examination, you are inefficient and even negative! The author combines his decades of teaching practice to talk about his own point of view on how to choose topics. Made some reflections from six aspects.