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2013年12月21日,全国中学数学高效课堂交流展示活动暨首届中学数学教师高效课堂主题说课大赛在北京召开。此次大赛为全国中学数学教师搭建了一个相互交流和展示的平台,参赛者的教学实践及在研究领域中所取得的宝贵经验和丰硕成果得以推广。本刊特开辟“中数专题”栏目,以展示本次会议中与会教师的部分教学科研成果,为广大教师提供再学习、再分享的桥梁。
On December 21, 2013, the National High School Mathematics Efficient Classroom Exchange and Display Activities and the First High School Mathematics Teacher Efficient Classroom Theme Lesson Contest were held in Beijing. The contest for the country’s secondary school mathematics teachers to build a platform for exchange and display, the participants of teaching practice and in the field of research gained valuable experience and fruitful results can be promoted. We hereby open up the column entitled “Number of Topics” to show some of the teaching and research achievements of the participating teachers in this meeting and provide the majority of teachers with the bridge to re-learn and then share.