教师讲课,怎样才能吸引住同学的注意力?尤其是在大班讲课,学生多,水平不一,这个问题更突出。例如在普通化学课中,有的同学在中学已学过“四个量子数”,有的却连“氢光谱”还不了解。因而,如何才能使基础较差的“听得懂”,又使基础较好的“有得学”,都不感到枯燥乏味,这确实是一门大有讲究的教学艺术。我想,我们或许能从讲寓言故事中得到一些启发和借鉴。 Teacher lectures, how to attract students’ attention? Especially in the class lectures, students, different levels, the problem is more prominent. For example, in the general chemistry class, some students have already learned “four quantum numbers” in high school, while others do not even understand the “hydrogen spectrum.” Therefore, it is really an elaborate teaching art that does not feel dull and boring on how to make the basis of poor “comprehension” and that of “getting a good foundation”. I think we may be able to get some inspiration and lessons from the allegory story.