一、前言新的一轮课程改革,伴随着新世纪的脚步,踏入我们的生活,新的教学理念给我们又提出更高的要求。新课程标准和教材突出了对学生素质的全面培养;突出了教学的个性化、多样化、综合化;突出了知识建构的过程,尤其是在教学的方法上,强调了科学探究。而物理学是一门实验科学,所以通过演示实验或学生实验等一系列的实验探究活动,不仅可以有效的帮助学生建立基本概念,掌握物理规律、突破教材重点、难点、疑点;更重要的是引 I. Introduction The new round of curriculum reform, along with the pace of the new century, has entered into our daily life. The new teaching philosophy has given us a higher demand. The new curriculum standards and teaching materials highlight the overall cultivation of students’ qualities; highlight the individualization, diversification and integration of teaching; emphasize the process of knowledge construction, especially emphasizing scientific inquiry in the teaching methods. Physics is an experimental science. Therefore, it is not only effective to help students to establish basic concepts, grasp the laws of physics, and to break through the key, difficult and doubtful points of teaching materials through demonstration experiments or student experiments. More importantly, lead