如何在有限的课堂中提高教学效率,是值得每个教育工作者深思的问题。文章从课堂氛围的营造、预设和生成关系的处理、学生合作交流的开展等方面进行了有益探索。 How to improve the teaching efficiency in a limited class is a question worth pondering by every educator. The article makes a useful exploration from such aspects as the construction of classroom atmosphere, the presupposition and the processing of generating relations and the development of student cooperation and exchange.