在一次数学公开课活动中,我听一位数学老师的常态课(本校研究课活动),她叫了几位同学板演计算题,有一位女同学是这样做的:1.4+0.8=1.2(竖式是这样的:■)。这位同学做完后回到座位上,才发现做错了,进位没有加,那位同学欲到黑板上去改,又不敢,等到那位老师走到她跟前时,我听到那位同学轻声地问老师:我可以去改一下吗?这位老师好像没有听见,这位同学又稍稍提高了 In a math open class activity, I listened to a math teacher’s normal class (my school’s research class activity). She called several classmates’ calculation questions. One female student did this: 1.4 + 0.8 = 1.2 ( Vertical is this: ■). The classmate returned to his seat after doing it, only to find doing wrong, carry not increase, the classmates want to go to the blackboard to change, not dare, until the teacher came to her, I heard that classmate Softly ask the teacher: I can change it? The teacher did not seem to hear, and the classmate improved slightly