目前,学生学习负担过重主要是为应付考试而做大量重复性的作业。学生学的被动,学的无奈,机械模仿性居多,因此延时作业应运而生。延时作业是相对于传统的家庭作业而言的,它的特点是作业内容具有开放性,作业时间可能是三五天,也可能是两三周,甚至是一两个月。延时作业的内容一般源于课本,可以是一个问题的纵向或横向推广,可以是一类问题的专题总结,可以是一章学习的总结……延时作业的目的之一是变被动学习为主动学习,变机械模仿为灵活创新,能激发学生对 At present, students are overburdened with learning by doing a lot of repetitive assignments to cope with the exam. Students learn to be passive, learning helplessness, and mechanical imitation are the most common, so time-delayed operations came into being. Time-delayed operation is relative to traditional homework. Its characteristic is that the operation content is open. The operation time may be three or five days, or it may be two or three weeks or even one or two months. The content of the time-delayed operation is generally derived from textbooks. It can be a vertical or horizontal promotion of a problem. It can be a topic summary of a type of problem, and can be a summary of a chapter’s learning. One of the purposes of the delayed operation is to change the passive learning to Active learning, changing mechanical imitation into flexible innovation can inspire students to