一、直观导入法对于一些概念比较抽象的课程,可以采用这种直观导入法.用直观教具、实验等演示手段,让学生通过观察来丰富感知,将抽象的知识具体化、形象化,并指出一些现象让学生自己观察和分析,以积累感性经验;然后进行归纳总结,以揭示其道理、关系或规律.这类导入方法,由于形象、生动,且还需要多种感官参与,通常会使学生产生浓厚的学习兴趣,使课堂气氛活跃. I. INTRODUCTION INTRODUCTION For some abstract abstract concepts, this kind of intuitionistic introduction can be used.Using visual aids, experiments and other demonstrations, students can enrich their perception through observation, visualize the abstract knowledge and point out Some phenomena allow students to observe and analyze their own in order to accumulate perceptual experience, and then summarize to reveal its reason, relationship or law.This method of introduction, because of the image, vivid, and also requires a variety of sensory involvement, usually make students Produce a strong interest in learning, the classroom atmosphere.