学生在经过有意注意为主导的接受知识的紧张思维之后,要产生精力上的短暂疲惫,其课堂表现力开始出现涣散。这时教师应充分调动学生的主动性,充分发挥学生的主体作用,不断地变换教学方法,改变刺激方式,设法让学生的多种感官参与 Students through the intentional attention-oriented knowledge of the nervous thinking, to produce short-term fatigue, the classroom expression began to appear scattered. At this time, teachers should fully mobilize the initiative of students, give full play to the main role of students, constantly changing teaching methods, changing the way to stimulate and try to get students to participate in a variety of senses