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课堂问答是一种最直接的师生双边活动,是数学课堂教学中使用频率最高的教学手段,更是教学成功的基础。课堂问答包括提问、候答、叫答、理答四个环节。而在实际教学中,教师往往只注意到第一个环节如何提问,对后面的某些环节关注甚少,并且存在着大量的低效与无效问答。下面列举四个教学片断作简要剖析。一、提问——问题指向不明,学生如坠烟雾【案例1】“认识加法”导入片断师:(出示情境图)仔细观察这幅图,
Q & A in the classroom is one of the most direct bilateral activities between teachers and students. It is the most frequently used teaching method in mathematics classroom teaching and is the basis of teaching success. Classroom questions and answers, including questions, waiting answer, answer, answer the four links. In practical teaching, teachers often only pay attention to how to ask questions in the first session, pay little attention to certain aspects in the back, and there are a lot of inefficient and invalid questions and answers. Here are four teaching fragments for a brief analysis. First, the question - the problem points to unknown, students such as falling smoke [Case 1] “Know the Addition ” into pieces: (show the situation map) Carefully observe this picture,