2014新版苏教版六级上册五单元教案.pdf

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1、1/12 第五单元分数四则混合运算本单元在分数四则计算和简单应用的基础上，主要教案分数四则混合运算和稍复杂的求一个数的几分之几是多少的实际问题。这部分内容是五年级教案的分数知识的综合、提高和总结，对掌握和应用分数知识有很大的影响。教案目标 1、使学生掌握分数四则混合运算的运算顺序并能正确进行分数四则混合运算。2、使学生了解整数运算律对分数同样适用，并能应用运算律进行简便计算。3、使学生会用分数乘法和加减法解决稍复杂的实际问题，增强数学应用意识教案重难点（1）理解并掌握分数四则混合运算的运算顺序。（2）运用分数混合运算解决稍复杂的实际问题。课时安排 15课时2/12 分数四则混合运算教案内容：苏

2、教版义务教育教科书数学六年级上册75 页例 1、练一练，第 76 页练习十二第 15题。教案目标：1、使学生结合解决实际问题的过程，理解并掌握分数四则混合运算的运算顺序，并能按运算顺序正确进行计算，主动体会整数运算律在分数运算中同样适用，并能根据运算律和运算性质进行一些分数的简便计算。2、使学生在理解分数四则混合运算的运算顺序以及应用运算律进行分数简便计算的过程中，进一步培养观察、比较、分析和抽象概括的能力。3、使学生在学习分数四则混合运算的过程中，进一步积累数学学习的经验，体会数学学习的严谨性和数学结论的确定性。教案重点：分数四则混合运算的运算顺序。教案难点：运用运算律和运算性质进行简便计算

3、。教案准备：多媒体课件。教案过程：一、创设情境。1、出示教科书第 75 页的例题图。提问：要求“两种中国结各做18 个，一共用彩绳多少 M？”这个问题，可以怎样列式？要求学生自主列出综合算式，并尽可能列出不同的综合算式。2、集体交流。教师根据学生的回答板书算式。25 18+35 18 （25+35）18 追问：列式时你是怎么想的？3、指出：在一道有关分数的算式中，含有两种或两种以上是运算，统称为分数四则混合运算。这两道算式都属于分数四则混合运算。（板书课题）文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2

4、F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S

5、2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10

6、S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L1

7、0S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L

8、10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3

9、L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ

10、3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R63/12 二、教案分数四则混合运算的运算顺序。1、谈话：根据以上计算整数、小数四则混合运算的经验，想一想，分数四则混合运算的运算顺序是怎样的？你会计算上面这两道式题吗？学生分别计算，并指名板演。2、提问：这两道

11、式题的计算结果相等吗？运算顺序呢？第一道算式先算什么？第二道算式呢？3、小结：分数四则混合运算的运算顺序与整数四则混合运算的运算顺序相同，也是先算乘除，后算加减，有括号的要先算括号里面的。4、做“练一练”第 1 题。让学生先说出运算顺序再计算，然后交流、订正。三、教案把整数的运算律推广到分数。1、引导：我们再来仔细观察例1 的两种解法。比较一下，这两种解法之间有什么联系？哪一种方法比较简便？你有什么想法？通过交流明确：整数的运算律在分数运算中同样适用。我们在进行分数四则混合运算时，要恰当地应用运算律使计算简便。2、做“练一练”第2 题。先让学生独立计算，再讨论分别应用了什么运算律或运算性质？四

12、、巩固练习。1、做练习十二第 3 题。让学生独立练习，指名四人板演。交流：每道题是哪里用了简便计算，依据是什么？五、全课小结。1.这节课你学会了什么？你有什么收获和体会？进行分数四则混合运算时应该注意什么？2.布置作业完成练习十二帝 2、4、5 题。板书设计：教后记：文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9

13、Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z

14、9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10

15、Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY1

16、0Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY

17、10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 Z

18、Y10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3

19、ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R64/12 分数四则混合运算练习课教案内容：苏教版义务教育教科书数学六年级上册7677页练习十二第 611题，思考题。教案目标：1、使学生进一步理解并掌握分数四则混合运算的运算顺序，并能按运算顺序正确进行计算，并能根据运算律和运算性质进行一些分数的简便计算。2、让学生进一步积累数学学习的经验，用分数四则混合运算解决一些实际问题。教案重点：正确计算分数四则混合运算。教案过程：一、做练习十二的第6 题。1、

20、先让学生回忆等式的性质，指名说一说。2、观察每个方程，说一说方程的特点。提示：都要写把方程的左边进行化简，再应用等式的性质求方程的解。3、独立解每个方程。指名板演，评讲。提醒学生及时进行验算。二、做练习十二的第7 题。1、让学生独立完成，指名板演，评讲。并要求学生说说分数四则混合运算的运算顺序，对学生容易出现的一些典型错误进行指导。三、1.做练习十二的第 8 题。先说说梯形的面积公式，再运用公式独立进行计算，评讲。做练习十二的第 9 题。先让学生独立解答，再让学生联系实际问题中的数量关系解释自己的列式和计算过程。鼓励学生用多种方法解答。先求什么，再求什么？文档编码:CF3P9W6Y3Z10 H

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25、10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3

26、Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y

27、3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R65/12 2.做练习十二的第 10 题。学生独立解答后，指名说说解题思路。提问：要求平均每人采集树种多少千克，

28、可以怎样想？数量关系式是怎样的？同桌先相互说一说。学生独立解答，指名板演。指出：解决实际问题，有时可以从问题想起，找出数量关系，确定先算什么，再算什么，再解答。3.做练习十二的第思考题先在小组里交流，再集体汇报。四、全课总结1.课堂小结2.作业完成练习十二第 7 题左边三道题，第11 题。板书设计：教后记：文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10

29、 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z1

30、0 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z

31、10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3

32、Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y

33、3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6

34、Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W

35、6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R66/12 稍复杂的份上乘法实际问题（1）教案内容：苏教版义务教育教科书数学六年级上册6869 页例 1、练一练，第72页练习十一第 13 题。教案目标：1、使学生理解并掌握用分数乘法和减法解决一些稍复杂的实际问题。2、使学生进一步积累解决问题的策略，增强数学应用意识。教案重点：解决稍复杂的分数实际问题教案难点：理解稍复杂分数实际问题的数量关系和解题思路。教案过程

36、：一、复习导入。岭南小学六年级有45 个同学参加学校运动会，其中男运动员占95。男运动员有多少人？独立解答，说说“其中男运动员占95”的含义及解题思路。如果把问题改成：“女运动员有多少人？”就成了今天我们要研究的新内容了。二、教案例 2。1、出示例 2 岭南小学六年级有45 个同学参加学校运动会，其中男运动员占95。女运动员有多少人？（1）比较复习题与例2 的不同。问题不同：复习题要求“男运动员有多少人？”而例2 要求“女运动员有多少人？”（2）说说“其中男运动员占95”的含义59 是哪两个量比较的结果？比较时把哪个量看作单位“1”？单位“1”的95是哪个量？文档编码:CF3P9W6Y3Z10

37、 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z1

38、0 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z

39、10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3

40、Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y

41、3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6

42、Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W

43、6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R67/12（3）让学生在线段图上分别表示出男女运动员所占的部分。独立完成在书上，评讲。（4）要求“女运动员有

44、多少人？”可以先求什么？并列出综合算式。板书：954545说说9545的含义，独立解答。（5）想一想，还可以怎样计算？板书：）（95145说说）（951的含义，独立解答。（6）小结：怎样解答这类应用题？三、巩固练习。1、做练一练第 1 题。先说一说可以怎样想，再独立解答。提问：可以怎样画线段图表示题意？结合回答，板书画出线段图。指出：条件和要求问题的数量不对应，可以先求出与32对应的数量看了多少页，再求问题的结果。2、做练一练第 2 题。独立完成，可以先画图思考，再列式解答。提问：求黑兔多少只的数量关系式是怎样的？和同桌说一说，再解答。3、做练一练的第 3 题指出：这题中83这个分数表示的数量

45、和要求的问题不对应，所以可以根据总数量和已知的分数求出83的对应数量，再求出问题的结果。四、全课小结，揭示课题。通过这节课的学习，你有什么收获？在解题时要注意什么？结合学生的回答，揭题板题。五、课堂作业做练习十三的第 1、2 题。文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y

46、3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6

47、Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W

48、6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9

49、W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P

50、9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3P9W6Y3Z10 HJ3L10S2F8I3 ZY10Z9Z8Y8R6文档编码:CF3