【案例】教室里,教师拿着一叠试卷站在讲台上。他首先整体分析本次考试的情况,再把考得差的那部分学生叫起来批评一番。然后话锋一转:“不过下面这些同学在本次考试中表现得非常好,这得益于他们平时学习的刻苦、认真。老师决定,对他们进行奖励。”老师像变戏法似的从讲台下面拿出一摞作业本,开始发放。某某某,奖励作业本五本;某某某,奖励作业本三本……看得出来,为了这次声势浩大的奖励活动,教师做了充足的准备工作——先把学生 [Case] ​​In the classroom, the teacher holds a stack of papers standing on the podium. He first analyzed the overall situation of the examination, then called the poor part of the students to criticize it. And then the subject turned: “But these students performed very well in this exam, thanks to their usual study hard, serious. Teachers decided to reward them. ” The teacher like a jester from the podium The following out of a pile of homework, began to release. A certain, rewarded homework five; a certain, rewarded homework three ... ... can see, in order to this massive rewards activities, the teacher made ample preparations - the first students