《圆柱和圆锥的认识》PPT课件

《《圆柱和圆锥的认识》PPT课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、苏教版六年级数学下册圆柱和圆锥的认识Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.长方形正方形三角形圆平面图形：立体图形：长方体正方体球Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithA

2、spose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.1.圆柱是由几个面围成的？2.用手平摸上、下两个面，有什么特点？上、下两个面的面积大小有什么关系？你怎么知道的？3.用双手摸侧面，滚一滚，发现什么？4.你还发现了什么？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.圆柱的上下两个面叫做圆柱的底面

3、，围成圆柱的曲线叫做圆柱的侧面，圆柱两个地面之间的距离叫做圆柱的高。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.底面底面oo高侧面两个同样大的底面可以有无数条高只有一个侧面Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.什么是圆柱的底面

4、？什么是圆柱的侧面？什么是圆柱的高？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.1.说一说：圆锥的顶点、底面、侧面的特征。2.想一想：圆锥的高是什么？你认为圆锥有多少条高？3.圆锥的特征与圆柱有哪些相同与不同点？4.你还发现了什么？仔细观察圆锥，你发现了什么？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2

5、.0.0.Copyright2004-2011AsposePtyLtd.圆锥的底面是一个圆，圆锥的侧面是一个曲线。从圆锥的顶点到底面圆心的距离是圆锥的高。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.高底面o侧面顶点一个侧面一个底面只能画一条高一个顶点Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.

6、Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfo

7、r.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationon

8、ly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011Aspose