中学数学内容丰富,定义、定理、公式很多。上课时容易听懂,应用起来却有一定的难度。随着学习的深入,新知识的不断增多,学生往往学了后面的忘了前面的。复习是与遗忘作斗争,加深对所学知识理解的最基本的方法,也是提高学 High school mathematics is rich in content, definition, theorem, formula. Easy to understand when class, there is a certain degree of difficulty. With the deepening of learning, the increasing number of new knowledge, students tend to learn behind the forgotten front. Review is the fight against oblivion, to deepen the understanding of the knowledge of the most basic method, but also to enhance learning