论文部分内容阅读
新编人教版六年级数学上册第三单元“分数除法”的“解决问题”中,教材第42、43页安排的例题7实际上就是解决“工程问题”。把工程问题安排在分数除法解决问题这个部分,不是单纯地教学工程问题的数量关系,而是用这个素材让学生经历数学思考的过程,学习数学方法——假设法,培养学生归纳概括、抽象推理的能力。当学生经历一系列交流讨论后,可以归纳到假设公路全长为1时,计算最简便,在此基础上
New PEP teaching sixth grade mathematics on the third unit “score division ” “problem solving ”, the textbook 42, 43 arrangements example 7 is actually to solve “engineering problem ”. Instead of simply teaching the quantitative relationship between engineering problems, arranging the engineering problem in the fractional division and solving the problem, we use this material to allow students to go through the process of mathematical thinking, to learn mathematical methods - hypothesis method, to develop students’ generalization and abstraction Ability. When the students experience a series of exchange and discussion, we can conclude that when the total length of the highway is assumed to be 1, the calculation is the easiest, and on this basis