“中位数”是属于《统计与概率》中的一个知识点,在教学中如何激发学生兴趣,促进学生思维,帮助他们突破认识上的难点,一直是困惑老师的一个问题。最近晏桂英老师执教本课的巧妙设计对此做了一个很好的诠释。片段一层层追问激发思维师:前不久,我们学校五年级的同学进行了一分钟的跳绳比赛,我把同学分成了两组,每组七人,一起来看看。 “Median ” is a knowledge point in “Statistics and Probability”. It is always a question of confusing the teacher how to stimulate students ’interest, promote students’ thinking and help them break through the difficulties in teaching. Recently, Mr. Yan Guiying coached the clever design of this lesson to do a very good interpretation of this. Fragment layer questioning inspire thinking division: Not long ago, our school fifth grade students conducted a one-minute rope skipping competition, I divided the students into two groups of seven people each, take a look.