复习课是帮助学生理清知识脉络,建构逻辑体系的基本平台。让复习课起到“温故而知新”的作用,数学课堂要具有新鲜感、系统化和延伸性。教师重组内容呈现方式、优化练习设计、合理拓展深化是提升课堂有效性的有力手段。 Review class is to help students sort out the logic, the basic platform for building a logical system. Let the review class play the role of “learning from old” so that the mathematics classroom should be fresh, systematic and extensible. Teachers reorganization of content presentation, optimization of practice design, rational development and deepening is to improve the effectiveness of the classroom a powerful tool.