化学实验可分为演示实验、边讲边实验和学生实验三类,其中演示实验的数量最多。演示实验是教师进行表演,并引导学生观察和思维的教学双方协调活动的实验。演示实验在各种教学活动中都可使用。一、演示实验的教学功能1.演示实验具有特殊的魅力。它容易激发学生的兴趣,提高教学效 Chemistry experiments can be divided into demonstration experiments, while talking about experiments and student experiments three categories, of which the largest number of demonstration experiments. The demonstration experiment is an experiment in which teachers perform performances and guide students to observe and think and coordinate their activities. Demonstration experiments can be used in a variety of teaching activities. First, demonstrate the experimental teaching function 1. Demonstration experiment has a special charm. It is easy to stimulate student interest and improve teaching effectiveness