要提高课堂教学的质量和效率的一个根本前提是:教师要对学生有爱心,充分信任学生,体谅学生,学生才能信任你,尊重你,才能喜欢听你的课。有了融洽的师生关系,这时在课堂上进行的各种教学艺术,在学生自觉或不自觉的配合下才能得以开展,也才能取得成效。课堂教学的过程,是师生双方交流沟通的过程,其中学生的反馈起着至关重要的作用,而学生一连串的面部表情,便是一种最迅速最直 To improve the quality of classroom teaching and efficiency of a fundamental premise: teachers love students, fully trust students, understanding students, students can trust you, respect you, like to listen to your class. With the harmonious relationship between teachers and students, all kinds of teaching arts carried out in the classroom at this time can be carried out only with the conscious or unconscious efforts of the students, and can be effective. The process of classroom teaching is the process of communication between teachers and students. Among them, students’ feedback plays a vital role. A series of facial expressions of students is one of the most rapid and straightforward