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《真分数与假分数的认识》一课即将结束时,学生们认为已经认识和掌握了真分数和假分数,思想上也开始松懈了。此时,我故弄玄虚:“同学们,老师这里有道有关真分数和假分数的难题,想不想挑战一下?”此语一出,台下倦怠之情一扫而空,学生们个个跃跃欲试,争着目睹老师的“拦路虎”。问:a/b是什么分数?为什么?一石激起千层浪,学生立即活跃起来,经过片刻紧张的思考后,精彩的辩论开始了。生1:我认为是真分数,a=2,b=7时,a/b就是真
“True Score and False Points Awareness” A lesson is coming to an end, the students think they have recognized and mastered the true scores and fake scores, the idea began to relax. At this point, I figured out: “classmates, the teacher here there is a road about the true scores and fake points of the problem, do not want to challenge? ” This term out of the audience languish swept away, the students all Eager, competing to see the teacher “stumbling block ”. Q: What is the score of a / b? Why? After a wave of rippling waves, the students immediately became active. After a moment of intense thinking, the brilliant debate began. Health 1: I think it is a true score, a = 2, b = 7, a / b is true