传统注入式教学是一种继承型的教学，培养的学生多是再现型人才。启发式教学是针对注入式教学存在的不足，设法激起学生的学习兴趣，在教学过程中逐渐培养学生的正确思维方式和敢于创新的精神。因此它要求教师善于挖掘学生学习的潜力，寻求激发学生学习主动性的途径：既要注重 Traditional injection-based teaching is a kind of inheritance teaching, most of the students are remanufactured talents. The heuristic teaching aims at the insufficiency of the injected teaching and tries to arouse the students’ interest in learning. In the process of teaching, the students are gradually trained in the correct way of thinking and the spirit of innovation. Therefore, it requires teachers to be good at mining the potential of students to learn, to seek ways to stimulate student learning initiative: it is necessary to pay attention to