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有幸能够听到两节初中物理省级公开课,让我领略了名师扎实的教学基本功和很好的课堂处理智慧。与此同时,其中有一个环节也引起了我的一点思考。一、教学片段在“探究导体电阻的大小可能与哪些因素有关”的教学活动中,课堂实录如下:师:导体电阻的大小可能与哪些因素有关?生1:导体的材料;生2:导体的长度;生3:导体的粗细(横截面积)。到此,影响导体电阻的三个真实因素已经顺利出现。在日常教学中,猜想环节一般会就到此结束,以免节外生枝。但该教师毕竟不同寻常,大胆地选
Fortunate enough to hear two junior high school physical provincial open class, let me enjoy the teacher a solid teaching basic skills and good classroom processing wisdom. At the same time, one of the links has also aroused my thinking. First, the teaching fragment In the “to explore the size of the conductor resistance may be related to what factors ” teaching activities, the class record is as follows: Teacher: conductor size of the resistance may be related to what? Health 1: conductor material; Health 2: The length of the conductor; Health 3: The thickness of the conductor (cross-sectional area). At this point, three real factors that affect the resistance of the conductor have been successfully emerged. In daily teaching, guess the link will usually end here, so as not to cause trouble. But after all, the teacher is an unusual and bold choice