课堂讨论是指根据教师、学生提出或设置的问题，在集体中相互交流、相互启发、相互学习的一种教学手段。它能提供学生直接参与学习、表达自己观点的机会；能让学生在获取知识的同时，综合能力得到培养。但在实践操作过程中也存在着不少问题，如：教师的指导不到位、课堂讨论的 Classroom discussion is a teaching method of mutual exchange, mutual enlightenment and mutual learning based on the questions put forward or set by teachers and students. It can provide students directly involved in learning, to express their point of view of opportunities; allow students to acquire knowledge at the same time, comprehensive ability to be trained. However, there are many problems in the practice of operation, such as: the teacher's instruction is not in place, the class discussion