很多专业课教科书中都有绪论部分,我从事机械制图教学多年,下面谈谈我对机械制图教材中绪论部分的理解及处理。一、上好绪论课的必要性对于绪论课有不同的看法和认识,有的认为绪论课在教学中无关紧要,讲不讲都可以。因而第一节就上正课,而把绪论课留给学生课后自己去看。也有的认为绪论课在教学中有着举足轻重的 Many professional textbooks have an introductory part, I engaged in mechanical drawing teaching for many years, let me talk about my understanding of the introduction of mechanical drawing teaching materials and processing. First, the good introductory lesson on the necessity of Introduction to the class have different views and understanding, and some think that introductory class in teaching is irrelevant, can not speak the same. Therefore, the first section is on the class, and leave the introductory class to students after class to see. Others think that introductory lessons play a decisive role in teaching