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教学中经常会发现这样一种奇怪的现象:做同样的题目,学生的家庭作业中普遍正确率较高,而课堂作业中则错误较多。有的父母也很纳闷:这是
Teaching often found such a strange phenomenon: do the same problem, the students generally have a higher homework accuracy, but the class work is more mistakes. Some parents also wonder: This is