课堂导入是教学的首要环节,起着温故知新和承上启下的作用。课堂导入即教师采用简洁的语言或辅助动作拉开一堂课的序幕,随即进入课堂教学主题的过程。课堂导入的成败直接影响着整堂课的教学效果。 The introduction of the classroom is the primary link of teaching, plays a role in learning from the new and inheriting from the warmth. The introduction of the classroom that teachers use simple language or auxiliary action to open the prelude to a class, then enter the classroom teaching process. The success of the introduction of the class directly affects the teaching effect of the entire class.