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演示实验是指为配合教学内容由教师操作表演示范的实验,演示内容不仅包括教材规定要演示的实验,还应包括教师根据教学需要自行设计的实验。显然,演示实验克服了因器材数量和安全因素不能进行分组实验的局限,而且演示实验能化抽象为形象,化枯燥为生动,是深受学生欢迎的实验形式,是教师施展教学艺术的独特方法。此外,演示实验能引导学生观察并进行思考,配合讲授能使学生认识物理概念和规律,达到事半功倍的效果。
The demonstration experiment refers to the experiment that the teacher performs demonstration in line with the teaching content. The demonstration content not only includes the experiment that the teaching material stipulates to demonstrate, but also includes the experiment that the teacher designed according to the teaching need. Obviously, the demonstration experiment overcomes the limitation that group experiment can not be carried out because of the quantity of equipment and safety factor, and demonstration experiment can turn abstraction into image and turn boring into vivid. It is an experimental form popular with students and is a unique method for teachers to exert teaching art. . In addition, the demonstration experiment can guide students to observe and think, with teaching to enable students to understand the concept of physics and laws, to achieve a multiplier effect.