恰当、适时的揭示课题,是整个数学教学环节中的一个有机组成部分。课题揭示得当,对一堂课会有点睛生辉之效。反之,时机不当,对课题一语带过,即使是一堂好课,也会给人以美中不足之感,甚至产生负效应。近年来常用的数学课题揭示方法较多,下面笔者就一些揭示方法的具体运用,谈谈自己的粗浅看法。一、开门见山式这种方式的特点是:能让学生一下子就接触本 Proper, timely disclosure of the subject, is an integral part of the entire mathematics teaching. Properly disclosed the subject, a class will be a little brighter effect. On the contrary, the improper timing leads to the topic, and even a good lesson can give people a feeling of lack of confidence in the United States, or even have a negative effect. In recent years, commonly used mathematics topics revealed more methods, the following author on the specific application of some revealing methods, talk about their own superficial view. First, straight to the point of this method is characterized by this way: to allow students to contact this at once