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某市2015届高三第一次调研中,有一道关于图象的多项选择题,考查学生应用物理规律并结合数学知识处理物理问题的能力,要求学生有较强的分析综合能力,是一道有很好区分度的试题.学生练习和答案公布后,学生间出现争议或疑惑,有的同学认为两个正确答案,有的同学认为只有一个正确答案.笔者通过探究性评讲,发现了学生的智慧,并取得了意外的收获,现对此加以归纳、分析,与同行交流.题目如图1所示,粗糙斜面体放
A city in 2015 the third year of high school the first survey, there are a number of multiple choice questions on the image, examine the students apply the laws of physics and mathematical knowledge combined with the ability to deal with physical problems, requires students to have a strong ability to analyze comprehensive, there is a Very good distinction between the test questions.When the students practice and answer the announcement, the students appear controversial or puzzled, some students think two correct answers, some students think there is only one correct answer.The author through the exploratory comment, found that students Wisdom, and made a surprise harvest, is to be summarized, analysis, exchange with peers. The subject is shown in Figure 1, the rough bevel body