较复杂分数乘法应用题教学一得铜陵市有色教育处秦传璋，陈银海分数乘法应用题课．可分三个层次进行教学。第一层次：让学生掌握数量与分率对应关系。例如：１．通过生活中买电影票看电影，按票上的排号和座号就能找到自己的座位。这就是一个对一个对应关系；２．出示幻灯... More complex fractional multiplication problems in teaching a teaching in Tongling City Department of Nonferrous Education Department Qin Chuan, Chen Yinhai fractional multiplication application class. Teaching can be divided into three levels. The first level: Let students master the relationship between quantity and rate. For example: 1. You can find your own seat by buying a movie ticket in your life. You can find your seat by the number of the seat on the ticket and the seat number. This is a one-to-one correspondence; Show slides...