化学是一门以实验为根据的科学。在教学过程中,必须由实验出发,通过实验,使学生清楚地了解到物质变化的原因及变化的结果。再由感性的认识,提高到理性的认识。这样,不但可以使学生获得巩固的知识,而且也可以很好地培养学生辩证唯物主义的世界观。因此,在教学中,教师要尽量结合实验进行讲解,同时也要让学生随堂实验。苏联的先进经验——边讲边做教学法,就具备了这一优点。实行这种教学法,在一节课内,教师既要进行讲解,还要做演示实验;同时,还要穿插上几次学生实验。这一来,一堂课的内容和形式,就非常丰富了。如果不能很好 Chemistry is an experiment-based science. In the teaching process, we must start from the experiment, through experiments, so that students clearly understand the causes of changes in the material and the results of change. Then by the perception of sensibility, to enhance the rational understanding. In this way, not only can students acquire consolidated knowledge, but also students’ dialectical materialist world outlook can be well cultivated. Therefore, in teaching, teachers should try to explain as much as possible with the experiment, but also to allow students to experiment. The Soviet Union’s Advanced Experience - Having this pedagogical approach to speaking has the advantage. The implementation of this teaching method, in a class, teachers should not only explain, but also to do demonstration experiments; the same time, but also interspersed with several student experiments. As a result, the content and form of a lesson is very rich. If not good