教师批改学生作业,是教学的重要环节,也是教学反馈的主要途径。长期以来,“全批全改”是广大教师普遍采用的方式,这种批改方式最大的优势是能让教师比较全面地了解学生的学习情况,从而有的放矢地实施课堂教学,但它需要教师付出大量的时间和精力,致使教师钻研教材、研究教法的时间相对减少;而且由于批改量过大,教师难以做到精批细改, Teachers to modify student assignments, is an important part of teaching, teaching feedback is also the main way. For a long time, “all the changes” are widely adopted by the majority of teachers. The biggest advantage of this modification is that teachers can fully understand the learning situation of students so that they can implement the instruction in a targeted manner. However, it requires teachers Pay a lot of time and effort, resulting in teachers to study textbooks, research teaching time is relatively reduced; and because the correction is too large, it is difficult for teachers to make careful changes,