微课是近年来兴起的一种教学模式,它以短小精悍著称,以突破某个知识难点为主要任务。微课基于互联网,集合了信息技术图文并茂和声像俱佳的特性,能为学生的数学学习带来新的契机。教师如何灵活运用微课,实现数学课堂的增值?本文从课前导入妙用微课,实现数学课堂的增值;课中突破妙用微课,实现数学课堂的增值;课后巩固妙用微课,实现数学课堂的增值三个方面阐述。 Micro-class is a kind of teaching mode that arises in recent years. It is known for its shortness and dignity, and its main task is to break through some difficult knowledge. Based on the Internet, micro-class combines the features of graphic arts and audio-visual information technology, bringing new opportunities for students to learn mathematics. How can teachers make use of micro-class flexibly to realize value-added in mathematics class? In this paper, we introduce magical micro-class from class before class to realize value-added in mathematics class; break through magical micro class in class to realize value-added in mathematics class; Class value added in three aspects elaborate.