一、背景错误是一种正常的教学现象,如课堂上当某个学生回答问题出现错误时,传统的做法通常是,教师再提问其他同学,直至得到教师自己认为是正确的答案为止。要不就是自己再讲一遍算数。教师之所以这样做的原因不外有二:一是主观上认为正确答案是唯一的;二是客观上有限的教学时间也不容许对每个学生的错误答案作出解释。实际上,这种貌似“合理”的教学行为和认识是与现代教育理念相背离的,从长远 First, the background error is a normal teaching phenomenon, such as classroom when a student to answer questions wrong, the traditional approach is usually, teachers and then ask other students until teachers get what they think is the correct answer. Or else repeat yourself again. There are only two reasons why teachers do this: one is the subjective belief that the correct answer is unique; and the second is that objectively limited teaching hours do not allow for the explanation of the wrong answer for each student. In fact, this seemingly “reasonable ” teaching behavior and understanding is contrary to the concept of modern education, from the long-term