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2015年11月16日下午,笔者在江苏省姜堰二中高二(7)班上了一堂公开课——《数系的扩充》.课后,经过江苏师范大学吴晓红教授和朱占奎教授以及徐州、泰州的部分同仁们(均为江苏省特级教师后备人才)的点评,有很大的收获.现将笔者教学前后的思考和各位的点评一并整理,和大家交流.一、经历“感知—感悟—知识”的过程是学好数学、掌握数学概念的必要方式一般而言,数学概念的获得是不可能一蹴而就
On the afternoon of November 16, 2015, the author took an open class in Jiangyan No. 2 Middle School (7) in Jiangsu Province - After the class was over, Prof. Wu Xiaohong and Zhu Zhankui from Jiangsu Normal University and Xuzhou, Some of my colleagues in Taizhou (Jiangsu provincial special forces reserve talents) reviews, there is a great harvest. Now the author before and after teaching thinking and you comment together to organize and exchange with you. First, the experience of “perception - Perception - knowledge ”process is to learn mathematics, mathematical concepts necessary way to master In general, the acquisition of mathematical concepts can not be accomplished overnight