一、改革课堂教学要使初中学生对物理学科感兴趣,并能较好地提高学习成绩,关键在于教师如何有效利用各种教学手段,改变一讲到底的状况,努力提高教学质量,充分发挥45分钟的课堂效率,激发学生学习物理信心。为此,我们试用录像这一现代化教学辅助手段,它有如下一些优点:(一)在45分钟课内能用有限时间让学生获得大量的、具体的、生动的例子去说明各种物理现象;(二)目前演示实验均由老师示范,由于设备陈旧,器材小,学生离讲台较远观察不清,因此实验效果不明显,达不到预期教学目的。通过录像能使每一位同学对演示实验看得清楚、看得懂,数字显而易见,继之引起他们对实验的关注与兴趣。二、对录像教学实验的准备工作为了活跃教学气氛、激起学生对学好物理的兴趣, First, the reform of classroom teaching to make junior high school students interested in physics, and can better improve academic performance, the key lies in how teachers effectively use a variety of teaching methods to change the situation in the end, strive to improve the quality of teaching, give full play to 45 The minute classroom efficiency stimulates students to learn physics confidence. To this end, we try to use video as a modern teaching aid. It has the following advantages: (i) In a 45-minute class, students can use finite time to obtain a large number of concrete and vivid examples to illustrate various physical phenomena; (B) At present, the demonstration experiments are all demonstrated by the teacher. Due to obsolete equipment and small equipment, students are not clearly observed from the podium. Therefore, the experimental results are not obvious, and they fail to achieve the intended purpose of teaching. Through the video, each student can see clearly and understand the demonstration experiment, the figures are obvious, and then cause their concern and interest in the experiment. Second, the preparation of video teaching experiments in order to activate the teaching atmosphere and arouse students’ interest in learning about physics.