“力求穷尽”,应该是数学教学中需要防范的一种问题。当然培养学生的发散思维,运用多种策略,多方位多角度地思考问题、分析问题,是培养学生创新精神的正确、有效做法。但是,这绝对不意味着数量越多,质量就越高,效果就越好,绝对不是多多益善。有些问题本身是不可以穷尽的,有些问 “Strive for exhaustion” should be a problem that needs to be prevented in mathematics teaching. Of course, cultivating students 'divergent thinking, using a variety of strategies, thinking from multiple angles and analyzing problems from different perspectives, is the correct and effective way to cultivate students' innovative spirit. However, this absolutely does not mean that the more the quantity, the higher the quality, the better the effect, and definitely not much better. Some questions can not be exhausted themselves, some ask