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案例在我校六年级的期终质量检测卷上出现这样一道判断题“直径是通过圆心且两端都在圆上的线段。()”初看这道题目似乎没有问题,印象中以前老教材上就有这样的表述,教师也会在上课强调直径的几个特点。考完之后在试卷分析时发现有10多位平时成绩十分优秀的同学判断该题是错的,这引起老师的关注。教师随后进行了个别访谈,归纳出以下原因:
Case in the sixth grade of my school final quality test volume appears on a judgment “The diameter is through the center of the circle and at both ends of the circle on the line. ()” At first glance this topic seems to be no problem, before the impression Old textbooks have such a statement, the teacher will also emphasize the class in the course of several characteristics of the diameter. After the exam finished in the analysis of the papers found that more than 10 normal grades very good students to determine the problem is wrong, which aroused the teacher’s attention. Teachers then conducted a separate interview, summed up the following reasons: