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让数学思想在小学课堂教学中有机渗透是新课标的要求。数学的本质是要让学生从看似无序的变化中找到有序的规律,最终使问题得到解决,这就是最朴素的数学思想。但在教学中如何把握,却一直是笔者苦苦思考的问题之一,难以释然。在市级观摩课中,《认识负数》这节课无意中为笔者打开了一扇窗户。在此分享几个精彩片段。片段一:预设认知冲突,生成符号化思维课堂伊始,执教者向学生提供了生活中常用到的数字。比如,足球比赛中国国
It is the requirement of the new course standard that letting the mathematical thought infiltrate into the teaching of primary school. The essence of mathematics is to enable students to find orderly laws from seemingly disorderly changes, and ultimately to solve the problems. This is the most simple mathematical thought. But how to grasp in teaching, but it has been one of the author hard to think about it, it is difficult to explain. In the municipal observation class, “Lessons about the negative” inadvertently opened a window for the author. Share some wonderful highlights here. Fragment one: the default cognitive conflict, the generation of symbolic thinking At the beginning of the classroom, the coaching staff to provide students with commonly used figures in life. For example, football matches in China