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1、学习好资料欢迎下载创新教学设计分数应用题教学目的：1通过复习，使学生能够掌握分数应用题的数量关系，并能正确的解答2通过复习，培养学生的分析能力以及综合能力3通过复习，培养学生认真、仔细的学习习惯教学重点：通过复习，使学生能够掌握分数应用题的数量关系，并能正确的解答教学难点：通过复习，使学生能够掌握分数应用题的数量关系，并且能够数量、正确的解答教学过程一、复习准备老师这里有两个数，一个是6，另一个是3你能够用6 与 3 提问并且进行回答吗？学生回答：（1）3 是 6 的几分之几？（2）6 是 3 的几倍？（3）3 比 6 少几分之几？（4）6 比 3 多几分之几？（5）6 占 6 与 3 总和的
2、几分之几？（6）3 是 6与 3 差的几倍？谈话导入：今天我们就来复习分数应用题（板书：分数应用题的复习）二、复习探讨（一）教学例4学校举办的美术展览中，有50 幅水彩画，80 幅蜡笔画 _？1教师提问：根据已知条件，你都可以提出什么问题？并解答学习好资料欢迎下载2反馈：（1）水彩画和蜡笔画共多少幅？（2）水彩画比笔画少多少幅？（3）蜡笔画比水彩画多几分之几？（4）水彩画比蜡笔画少几分之几？（5）水彩画是蜡笔画的几分之几？（6）蜡笔画是水彩画的几分之几？（7）3教师质疑（1）5 问和 6 问为什么解答方法不同？（单位1 不同）（2）3 问和 4 问的问题有什么不同？（单位1 不同）（二）例题变
3、式1学校举办的美术展览中，有 50 幅水彩画，蜡笔画比水彩画多，蜡笔画有多少幅？2学校举办的美术展览中，有80 幅蜡笔画，蜡笔画比水彩画多，水彩画和蜡笔画一共有多少幅？（1）学生独立解答（2）学生讨论两道题的区别教师总结：看来我们做分数应用题时，需要认真审题并且在找准单位1 的同时注意找准对应关系（三）深化如果题目中的分数发生了变化，我们还会解答吗？1仓库里有15 吨钢材，第一次用去总数的20，第二次用去总数的，还剩下多少吨钢材？文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文
4、档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4
5、S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D
6、10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S
7、2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7
8、G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G
9、1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A
10、8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2学习好资料欢迎下载2仓库里有一些钢材，第一次用去总数的20，第二次用去总数的，还剩下 15 吨，仓库里有多少吨钢材？（1）学生独立解答（2）学生讨论两道题的区别教师总结：虽然分数应用题与百分数应用题在表现形式上不同，但是数量关系相同同样需要注意认真审题并且在找准单位1 的同时注意找准对应关系三、巩固反馈1分析下面每个题的含义，然后列出文字表达式（1）今年的产量比去年的产量增加了百分之几？（2）实际用电比计划节约了百分之几？（3
11、）十月份的利润比九月份的利润超过了百分之几？（4）1999 年的电视机价格比1998 年降低了百分之几？（5）现在生产一个零件的时间比原来缩短了百分之几？（6）十一月份比十二月份超额完成了百分之几？2列式不计算（1）油菜子的出油率是42，2100 千克油菜子可以榨油多少千克？（2）油菜子的出油率是42，一个榨油厂榨出菜子油2100 千克，用油菜子多少千克？（3）某工厂计划制造拖拉机550 台，比原计划超额完成了50 台，超额了百分之几？3判断并且说明理由男生比女生多20，女生就比男生少20（）4一辆汽车从甲地开往乙地，第一小时行了全程的，第二小时比第一小时多行了16 千米，这时距离乙地还有94
12、 千米甲、乙两地间的公路长多少千米？四、课堂总结通过今天这堂课，你有什么收获吗？五、课后作业文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3
13、J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B
14、4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C
15、8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:C
16、X3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT
17、1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF
18、3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2学习好资料欢迎下载某体操队有60 名男队员，（1）女队员比男队员多，女队员有多少名？（2）男队员比女队员多，体操队员共有多少名？（3）女队员比男队员少，女队员有多少名？（4
19、）男队员比女队员少，体操队员共有多少名？六、板书设计文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D1
20、0 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2
21、文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G
22、4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1
23、D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8
24、S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2文档编码:CX3J5F7G4S2 HT1B4V1G1D10 ZF3C8O3A8S2