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《数学课程标准》指出:“数学教学是数学活动的教学,是师生之间、学生之间交往互动与共同发展的过程。”师生对话是课堂教学的主要的交流互动方式,但是,现实的课堂中,教师说学生听、教师问学生答的交流方式比较普遍,学生之间思维的碰撞与交流比较少,这不是真正的对话,也没有实现师生之间、学生之间交往互动与共同发展。造成这种现象的原因是多方面的,其中一个原因就是教学的设计不够开放,学生没有讨论与交流的时间与空间。
The standard of mathematics curriculum states that mathematics teaching is the teaching of mathematics activities and the interaction, mutual development and mutual development among teachers, students and students. "The dialogue between teachers and students is the main mode of communication and interaction in classroom teaching. However, In the real classroom, teachers say that students listen to them and teachers ask students to reply more commonly. There are few collisions and exchanges between students in thinking. This is not a real dialogue, nor does it make contact between teachers and students or students. Interaction and common development. The reasons for this phenomenon are many. One of the reasons is that the design of teaching is not open enough and the time and space for students to discuss and exchange are not available.