新课标在“基本理念”中指出:“有效的数学学习活动不能单纯地地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习数学的重要方式.”如何提高初中总复习的效率,历来是众多数学教师探索研究的问题.由于总复习时间紧,内容多,要求高,且没有固定的教材,这使得在例题设计上反 The new curriculum standard states in the “basic concept”: “Effective mathematics learning activities cannot simply rely on imitation and memory. Hands-on practice, independent exploration and cooperation and communication are important ways for students to learn mathematics.” How to improve the efficiency of the overall junior high school review , It has always been a problem of many mathematics teachers to explore and study. Due to the fact that the total review time is tight, the contents are numerous, the requirements are high, and there is no fixed teaching material, which makes the example design counter-productive.