资料简介
统计与可能性冀教版五年级数学上册Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
教学目标1.经历猜测、实验,体验事件发生的可能性是有大小的;2.能对简单事件发生的可能性作出预测,并阐述自己的理由。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
调查一下,你的同学喜欢什么卡通形象?兔巴哥史努比维尼皮卡丘米老鼠唐老鸭加菲猫Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
选出喜欢人数较多的四种,统计人数,看看哪种卡通形象最受欢迎。卡通形象喜欢人数8人10人16人6人最多!Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
球Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
任意摸一个球,可能是什么颜色的球?可能摸到黄色或红色小球。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
可能摸到黑球吗?不可能摸到黑色的小球。球Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
猜一猜因为盒子里面只有黄球和红球,没有黑球,所以不可能摸到黑球.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
每次摸出1个球,再放回口袋,一共摸40次。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
把摸得的结果用画“正”字的方法记录下来。红球黄球摸球结果记录表Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
你能把记录的结果填在左面的统计表里吗?红球黄球合计红球黄球Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
每次任意摸1个球,摸10次,摸到哪种球的可能多一些?Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
红黄109876543210红黄每次涂一个方块做记录。每次涂一个方格做记录,涂成条形图。把摸到的结果记录下来(选一种记一记)。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
放铅笔Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
在布袋里放4枝铅笔,应该怎样放?任意摸一枝,不可能是红铅笔。放4枝蓝铅笔。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
在布袋里放4枝铅笔,应该怎样放?任意摸一枝,可能是红铅笔。可以放1枝、2枝、3枝红铅笔。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
在布袋里放4枝铅笔,应该怎样放?任意摸一枝,摸50次,摸到红铅笔和蓝铅笔的次数差不多。放入的红铅笔和蓝铅笔一样多。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
10个蓝球10个白球5个蓝球5个黄球可能是黄球不可能是蓝球一定是蓝球从下面盒中,分别摸出1个球。连一连Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
加油吧!Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
从下面的三个盒子里分别摸出一个小球,会是哪种结果?可能是黄球不可能是黄球一定是黄球Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
摸到红球的可能性大摸到黄球的可能性大摸到红球和黄球的可能性相等摸到的一定是红球在每个口袋里任意摸一个球,可能会怎样?你能用线连一连吗?Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
课堂总结事件发生的可能性是有大小的,同学们要在以后的学习和生活中学会观察,将我们课堂上所学的知识应用于生活中。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.
查看更多