2022年人教版小学数学三年级下册第三单元第二节第一课时《平均数》教学设计 .pdf

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1、学习好资料欢迎下载教案首页教材版本人教版学段低龄段学科数学章节第 3 单元课题名求平均数（1）课时第一课时执教教师单位新余市暨阳学校教师姓名陈婧教学目标1.使学生理解平均数的含义,初步学会简单的求平均数的方法,理解平均数在统计学上的意义。2.使学生初步学会简单的数据分析，进一步体会统计在现实生活中的作用，理解数学与生活的紧密联系。3.用数据分析、比较等多种方式来解决问题，提高学生解决问题的能力，拓宽学生解决问题的途径。4.在愉悦轻松的课堂里，掌握富有挑战的知识，丰富生活经验的积累。在活动中增强探索数学规律的兴趣，积累积极的数学学习情感。教学重点通过直观的方式使学生理解什么是平均数，再利用平均分

2、的意义，使学生理解。同时感受平均数在统计学上的意义和作用。教学难点总结出求平均数的一般方法，实现从直观到抽象的过渡。教具时间安排情境导入（5 分钟）探究新知（25 分钟）学习好资料欢迎下载巩固练习（7 分钟）收获分享，课后作业安排（3 分钟）课后小结备注求平均数（1）执教人：新余市暨阳学校陈婧教学内容：义务教育课程标准实验教科书三年级下册第三单元教材第42 页例 1。教学目标：1.使学生理解平均数的含义,初步学会简单的求平均数的方法,理解平均数在统计学上的意义。2.使学生初步学会简单的数据分析，进一步体会统计在现实生活中的作用，理解数学与生活的紧密联系。3.用数据分析、比较等多种方式来解决问题

3、，提高学生解决问题的能力，拓宽学生解决问题的途径。4.在愉悦轻松的课堂里，掌握富有挑战的知识，丰富生活经验的积累。文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10

4、K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J1

5、0K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J

6、10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9

7、J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z

8、9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7

9、Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M

10、7Z9J10K10 ZV6V4T3H4E2学习好资料欢迎下载在活动中增强探索数学规律的兴趣，积累积极的数学学习情感。重点和难点：重点：通过直观的方式是学生理解什么是平均数，再利用平均分的意义，使学生理解。同时感受平均数在统计学上的意义和作用。难点：总结出求平均数的一般方法，实现从直观到抽象的过渡。教学过程：一、创设情境（1）同学们，你们看过时装表演吗？今天我们一起看看特别的时装表演。课件出示，小学生环保时装秀。你们说他们有什么特别的啊？（2）看着站在前面的两个姐姐不分上下，获得本次活动的并列第一。现在学校决定奖励她们，总共有十支圆珠笔，奖励孙芳4 支，刘敏 6 支。如果你是孙芳，你会怎么想？生

11、：不公平，两人都并列第一，应该同样多。（3）那么在不改变总数的情况下，该怎么分呢？老师用磁铁来代替圆珠笔，红色磁铁表示孙芳获得的，绿色磁铁表示刘敏获得的，你们先想想该怎么分？让学生上台来摆，移动磁铁，答案正确老师并给予肯定。（4）通过刚刚同学的移动，将多的补给少的，就得到了相同的数，换句话说？（生：将总数 10 支圆珠笔平均分给她们俩）得到的这个数，我们就把它叫做平均数。今天我们就来认识这个新朋友平均数。板书课题：求平均数。二、探索新知（1）课件出示：小红组织了一支由四人组成的环保卫士队。文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4

12、R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I

13、4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3

14、I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP

15、3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:C

16、P3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:

17、CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码

18、:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2学习好资料欢迎下载1.他们正在干什么呢？生：正在收集矿泉水瓶子。2.陈老师将他们收集矿泉水瓶子的数量统计了一下，并制作成了统计图。从图中你们能获得什么信息？生：小红收集 14 个

19、矿泉水瓶子等。3.通过这些信息你能不能求出他们一共收集了多少呢？生：能。14+12+11+15=52（个）（2）这还有一个问题也请你们解决它，他们小组平均每人收集多少个矿泉水瓶子呢？1在你们思考之前，我想问问，平均每人收集了多少是什么意思？生：他们每人收集一样多。2现在请你们分成四人为一小组，有什么方法解决这个问题呢？想到一种可以再想想还还有没有别的方法呢？3小组汇报。生 1：可以将小红移 1 个给小兰，小明移2 个给小亮。他们平均每人收集了 13 个。生 2：求出总收集矿泉水的数量，平均分成了4 分，（除以 4）得到平均每人收集 13 个。教师边板书：（14+11+12+15）4 =524

20、=13（个）4再回到统计图。A请问小红收集了13 个吗？（不是）文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4

21、R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I

22、4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3

23、I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP

24、3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:C

25、P3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:

26、CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2学习好资

27、料欢迎下载B小兰收集了 13 个吗？小亮、小明呢？（都不是）C那 13 能表示他们收集的实际数量吗？生：它表示的不一定是实际数量。（2）小结：1到底平均数是一个怎样数？生：它不一定表示实际数量，使一组数据中不同的数，变成相同的数；或者说将总数平均分成几份，得到平均值。2怎样求平均数？A用移多补少的方法。B先求总数，再将总数平均分成几份，就除以份数，得到平均数。三、巩固应用（1）其实在我们的生活中，许多地方都有平均数，现在请你们来找找这些当中的平均数，并说说你的理解。1我们班同学的平均身高大约为138 厘米。2这周我市日平均气温是15 度。（2）我是小辩手。现在我们就将教师当成我们的辩论场地，大

28、家一起来辩一辩。北湖水上乐园的平均水深为1.2 米，那身高是 145厘米的李明同学下水可能会有危险吗？课件展示过程。（3）11月份，三(5)班的 3 名同学植树的数量如下表:姓名钟馨宇何洋胡婷植树数量/棵7 11 9 文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT

29、10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 H

30、T10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1

31、HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1

32、 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O

33、1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6

34、O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F

35、6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2学习好资料欢迎下载你能求出他们在这个月内平均每人种了多少棵树吗?（4）有许多的偏远地区，严重缺水，平均每人每天用水量约3 千克。上周师用水量情况统计图如下：陈老师平均每天用水量是多少千克？并进行环保教育。四、课堂小结通过今天这节课的交流学校，我们或多或少都有些收获，有好东西大家要分享。分享一下你今天的收获。五、课后作业请你统计出你小组组员的身高和体重分别是多少，并算一算你们小组的平均身高和平均体重大约各是多少。六、板书设计求平均数（1）移多补少总数份

36、数=平均数孙芳：45 （14+11+12+15）4 刘敏：65 =524 =13（个）一二三四五用水量：千克40 45 50 55 53 47 40 50 45 49 45 六七星期文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4

37、T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V

38、4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6

39、V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV

40、6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 Z

41、V6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10

42、ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2文档编码:CP3I4R6F6O1 HT10M7Z9J10K10 ZV6V4T3H4E2