在学习乘方时,我讲完一例题后,叫了四位学生上黑板练习,其中有位学生最早做完题目,高兴地下去坐在位子上,看着没做完的同学,可不一会儿他却跑了上去拿起板擦开始修改,修改好后又回到坐位上,一会儿又跑上去改了,最后着急了,竟用手直擦黑板,继续修改。台下的学生也笑出了声,看得我又生气又想笑。 When I was studying for a party, after I finished an example, I called four students to practice on the blackboard. Among them, some of the students finished the subject as soon as possible, happily went down to sit on their seats and looked at the students who did not finish. But ran up to pick up the wipe board began to modify, modify and then returned to the seat, and then ran up and changed, and finally anxious, actually hand rub the blackboard, continue to modify. The audience of students also laughed, I saw angry again and want to laugh.