【片断一】师:(课件出示小强、小林、小刚三个人的头像)他们与张老师比赛投篮。比赛的规则非常简单,时间1分钟,谁投进的个数多,谁就赢。最先出场的是小强,1分钟很快就过去了,小强投进(课件出示)5个。师:你们觉得怎样?生:少了点。师:不止是你们觉得少了点,连小强自己都觉得少了点,于是他拉着我的手,让我再给他两次机会。师:我会不会同意小强的 [Piece] a division: (courseware to show Xiaoqiang, Kobayashi, Xiaogang three individual's picture) They shot with Zhang game. The rules of the game is very simple, time 1 minute, who cast a large number, who won. The first appearance is Xiaoqiang, 1 minute passed quickly, Xiaoqiang cast into (courseware show) 5. Teacher: How do you feel? Student: A little less. Teacher: Not only do you feel a little less, even Xiaoqiang feel less of their own point, so he took my hand, let me give him two more chances. Teacher: I will not agree Xiaoqiang