在数学教学过程中,复习是个常态教学环节.许多人会关注研究学期末的复习、中考的复习,而平时章节阶段性的复习也是常有的,这类复习课课时一般安排较少,常常就是一个课时,要复习小结一章的内容.时间短、知识点细而丰富,还总想着要设计有新意的、典型的例题习题,常常是患得患失,得不偿失如何提高这难得的一节复习课的有效性呢? In the process of mathematics teaching, the review is a normal part of teaching.Many people will pay attention to the review of the end of the semester, review of the senior high school entrance examination, and usually the periodic review of the chapters is also common, such refresher class hours are generally less arranged, often A class time, to review the contents of a summary chapter. Time is short, the knowledge of small and rich, but also always thinking about the design of innovative, typical example exercises, often suffering from losses, outweigh the benefits of how to improve this rare section review class Effectiveness?