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在小学数学中存在着大量的对应关系,如数与形、量与量和量与率等对应关系。教学中,教师如果能有目的地渗透对应思想,不仅有助于引导学生将抽象问题直观化、复杂问题简单化,而且能提高学生解决问题的能力,发展学生的数学思维。在解决问题的过程中,如何才能引导学生抓住对应关系,提高他们解决问题的能力呢?下面笔者以小学数学教材(北师大版)为例,就如何从不同角度引导学生把握对应关系,试着从几个方面进行分析阐述。
There are a large number of correspondence in primary school mathematics, such as number and form, quantity and quantity and quantity and rate of correspondence. Teaching, if teachers can penetrate the corresponding ideas purposefully, not only helps to guide students to visualize abstract problems, simplify complex issues, but also improve students ’ability to solve problems and develop students’ mathematical thinking. In the process of solving the problem, how to guide students to grasp the corresponding relationship, to improve their ability to solve the problem? The author follows the textbook of primary school mathematics (Beijing Normal University Edition), for example, how to guide students from different angles to grasp the corresponding relationship, Try to analyze and explain from several aspects.