课堂教学是教师和学生运用教学媒体在一定时空中的活动。课堂教学有时间的延续就有它展开的序,在这个有序的活动中就有了教师与学生,教师、学生与化学信息,教师、学生与环境之间情感与情境的交流。而且这种序和情感的交流贯穿整个课堂教学的始终。 Classroom teaching is a timed aerial activity of teachers and students using teaching media. The continuation of time in classroom teaching has its unfolding order. In this orderly activity, there will be exchanges of emotions and situations between teachers and students, teachers, students and chemistry information, teachers, students and the environment. And this kind of order and emotional communication runs through the entire classroom.