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这是一节普通的习题课,虽然没有新颖别致的课堂设计,但老师艺术性的语言、巧妙的启发点燃了学生探究学习的激情,激活了学生的思维,收到了意想不到的效果。老师出示一个差倍问题的例题。某工厂男工和女工的人数比是5∶7,男工比女工少60人,男工、女工各多少人?让学生尝试,大多学生根据比的意义很快找到了解决问题的方法。男工人数看成5份,女工人数就是这样的7份,男工比女工少2份,少60人,
This is an ordinary exercise class. Although there is no new and unique classroom design, the artist’s artistic language and clever inspiration ignited the passion of students to inquire about learning and activated students’ thinking and received unexpected results. The teacher shows an example of the problem of bad times. The ratio between the number of male and female workers in a factory is 5: 7, the number of male workers is 60 less than that of female workers, and the number of male workers and female workers is so large. Let students try and most students find a solution to the problem quickly according to the ratio. The number of male workers is considered as five, the number of female workers is seven such cases, the number of male workers is two less than that of female workers, and the number is less than 60,