每一堂课都是从组织学生开始的,这种组织的实质是从心理上引起学生的注意力和激发学生求知的欲望,此时的新课导入起着重要的作用。导入的方法很多,有讲故事,编笑话,设陷阱……它因教学内容、学生实际、客观条件等而不同,但宗旨只有一个,就是要让学生轻松愉快地、充满兴趣地、带着强烈求知欲望地寻求新知识,把被动的“苦学”变为“乐学”。用演示实验来导入新课,效果非凡。一、用演示实验导入新课教学中用悬念性情境演示实验,在学生已有认知 Each lesson begins with organizing students. The essence of such organization is to psychologically arouse the students ’attention and the desire to arouse students’ knowledge. At this time, the introduction of a new lesson plays an important role. The introduction of many ways, there are stories, jokes, trap ... ... It is due to teaching content, the actual students, the objective conditions and so on, but only one purpose is to make students happy, full of interest, with a strong Seek the desire to seek new knowledge, the passive “hard study ” into “music ”. Importing new lessons with demo labs is great. First, the use of demonstration experiments into the new lesson Teaching with suspenseful situation demonstration experiment, the students already know