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培养思维能力是小学数学教学的主要任务。学生思维能力的培养需要一个长期的培养过程。1.运用操作,引发思维。操作是一种特殊的思维活动。操作时手与脑、眼协同活动,学生可以在动态中感知事理情节,有利于把外显活动内化为心智活动。例如教学14-9,其重点是使学生掌握口算方法,理解退位减法的算理。首先让学生摆出1捆(10根)零4根小棒,启发学生想9+()=14,个位4减9不够减怎么办?先算什么?再算什么?学生根据教师的启示,边操作边思考,悟出:先从1捆(10根)小棒中拿去9根,再把剩下的1根和原来的4根合
Cultivating thinking ability is the primary task of primary school mathematics teaching. The cultivation of students’ thinking ability needs a long-term training process. 1. Use the operation to trigger thinking. Operation is a special kind of thinking activity. Operation hand and brain, eye synergistic activities, students can sense the situation in the dynamic, is conducive to the explicit internalization of mental activity. For example, teaching 14-9, the focus is to enable students to master the port arithmetic method, understanding abortion subtraction algorithm. First of all, let the students put in a bundle of 10 (zero) 4 small sticks, inspire students to think 9 + () = 14, a bit 4 minus 9 not enough reduction how to do? , While thinking about the operation, to realize: first from a bundle of 10 small sticks to take 9, and then the remaining 1 and the original 4