通过师生角色转变，恰当设计教学活动，合理地分配小组成员及创设和谐的教学氛围，从而有效地进行师生互动，拉近师生的心理距离，从而激发了学生的学习兴趣，致使课堂效果事半功倍。%Through the role changing of teachers and students,proper teaching activities are designed; students are divided rationally into groups, and harmonious teaching atmosphere is created to effectively interact among teachers and students, and shorten the psychological distance between teachers and students. In this way the students’study interest is stimulated so as to improve the effect of teaching greatly.
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