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课堂提问是一种重要的教学手段。教师应该根据学生的心理特点和认识事物的规律设计问题。课堂提问应注意如下几个要求:一、问题要提得正确,不能出现概念性错误。有位教师这样提问:“昨天我们学习了平行线的性质,大家想想同位角、内错角、同旁内角哪些是相等的?哪些是互补的?”学生回答:“同位角、内错角是相等的,同旁内角是互补的。”他们的问答中缺了前提“两条平行线被第三条直线所截”,是得不出“相等”或“互补”的结论的。丢弃必要的条件是导致问题出错的主要原因。
Classroom questions are an important teaching method. Teachers should be based on the psychological characteristics of students and understanding the laws of things design issues. Classroom questions should pay attention to the following requirements: First, the problem should be raised correctly, can not be conceptual error. A teacher asks: “Yesterday we studied the nature of parallel lines. We think about the same angle of intersection and the angle of error, which are the same as the angles of the sides and which ones are complementary?” The students replied: “The same angle, Are equal and complement each other. ”Their question and answer lacked the premise that“ the two parallel lines are truncated by the third line, ”and that no“ equal ”or“ complementary ”conclusion can be obtained. Discard the necessary conditions is the main reason for the problem.