教学是一门科学,也是一门艺术,是科学性和艺术性的统一体。富有成效的教学不仅决定于教师对教材居高临下的认识水平,更决定于教师对教材深入浅出的组织水平,把教材、教案这些静态知识的集合转化为动态信息传递给学生的引导艺术。教学是通过知识内容,语言动作,姿态情感等获得讲授效果的。因此,具有舞台艺术的特征。正如波利亚所言“教学与唱戏有许多共同之处”,教师是集演员、编剧、导演于一体 Teaching is a science, an art, and a unity of science and art. Effective teaching not only depends on the level of teachers’ understanding of the teaching materials, but also determines the level of teachers’ simple understanding of the teaching materials, and transforms the collection of static knowledge in teaching materials and lesson plans into the guiding art of dynamic information transmission to students. Teaching is achieved through knowledge content, language action, attitude and emotion. Therefore, it has the characteristics of stage art. As Polya said, “teaching and singing have many things in common”, teachers are actor, screenwriter and director.