一、问题起因在一次听课中曾有这样的一个对话,“为什么要学压强”“为了考试。”听了真想笑但又笑不出来。学生学习物理知识不知道学它有什么用只知道是为考试,降低了学生学习物理的兴趣和热情。所以,物理教学不能忽视这个为什么教学即这个“理”字,要培养学生说理、明理、论 First, the cause of the problem In a lecture had such a dialogue, “Why do you want to study pressure” “for the examination.” Listening to really want to laugh but can not laugh. Students do not know the physical knowledge of learning what it is used to know only for the examination, reducing the students interest in learning physics and enthusiasm. Therefore, the teaching of physics can not ignore why teaching this “reason” word, to cultivate students reasoning, reasoning,