论文部分内容阅读
求异思维,具有多端性、变通性、独创性,是人类从事创造性活动的一种主要的思维方式。培养学生的求异思维能力,是广大教师十分重视的问题。笔者在进行化学习题教学时,就这个问题做过一些初步的尝试,有几点肤浅的体会: 一、实验设疑,培养学生的求异思维能力有一道习题:甲乙两人都欲制Al(OH)_3,所用的试剂相同,即用同一瓶的NaOH溶液和同一瓶的Al_2(SO_4)_3溶液,不同的是,甲往盛有NaOH
Differing thinking, with versatility, flexibility, originality, is a major way of thinking that humans engage in creative activities. Cultivating students’ ability to think differently is a problem that teachers in general have attached great importance to. The author has made some preliminary attempts on this issue during the teaching of chemistry problems. There are several superficial experiences: First, the experiment is suspicious, and there is a problem in cultivating the students’ ability to think differently: Both A and B want to make Al ( OH)_3. The reagents used are the same, ie, the same bottle of NaOH solution and the same bottle of Al_2(SO_4)_3 solution. The difference is that A is filled with NaOH.