And so this is an effective strategy that can be used for grading at scale, and is also a useful learning strategy for the students, because they actually learn from the experience.
因此这是一个很有效的策略 对于大规模作业批改来说 并且还是个对于学生来说有用的学习策略 因为他们实际上从这段经验中学到了东西