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《等量代换》一课是人教版《义务教育课程标准实验教科书·数学》三年级下册数学广角内容中的等量代换知识。教材编排的意图是通过分析问题、解决问题,向学生渗透一些初步的数学思想方法,并用这些思想方法解决一些简单的实际生活问题和数学问题。从上学期到这学期,对这节课共上了三次,因为有了不断的思考,所以每次上课的设计和过程都不尽相同,下面我结合这三次执教《等量代换》的经历,谈谈自己的一些感悟。
“Equivalent substitution” is a lesson PEP “compulsory education curriculum standard experimental textbook mathematics” third grade mathematics wide-angle content in the equivalent replacement knowledge. The purpose of textbook layout is to analyze the problem, solve the problem, to infiltrate some of the initial mathematical ideas and methods to students, and use these ideas and methods to solve some simple real-life problems and math problems. From the last semester to this semester, I took this class a total of three times, because of constant thinking, so each class design and process are not the same, I combine these three coached the “equivalent substitution” experience , Talk about some of their own sentiment.