《五年级上册《梯形的面积》》由会员分享，可在线阅读，更多相关《五年级上册《梯形的面积》（25页珍藏版）》请在金锄头文库上搜索。
1、 人教版义务教育课程标准试验教科书小学数学五年级上册Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.一、分析教材 二、教学目标三、教学重、难点四、教法与学法五、教学过程六、板书设计Eval
2、uation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 本课知识是对前面所学的长方形、 正方形、平行四边形和三角形面积知识 的发展、巩固和应用，梯形的面积是小 学阶段的几何知识的重要内容，为后面 的组合
3、图形的求积知识以及进一步学习 立体几何知识做好铺垫。学习梯形的面 积能够较好地培养学生运用知识解决实 际问题的本领，培养学生的思维能力和 空间观念，提高学生的数学素质。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 A
4、spose Pty Ltd.(1)使学生理解梯形面积计算公式的来源， 能够运用公式正确地计算梯形的面积， 并会计算一些简单的有关梯形面积的实 际问题。 (2)初步培养学生的逻辑思维能力和空间观 念。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyr
5、ight 2004-2011 Aspose Pty Ltd.教学重点：掌握和应用梯形面积的计算公式 。教学难点：梯形面积计算公式的推导 。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.直
6、 观 演 示 法情 景 教 学 法迁 移 转 化 法尝 试 教 学 法Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. （一）复习铺垫，准备迁移 （二）游戏导入，激趣引新 （三）操作思考，
7、探索规律 （四）及时练习，反馈巩固 （五）完成作业，进行总结Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.（一）复习铺垫，准备迁移Evaluation only.Evaluation o
8、nly. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.复习1. 平行四边形、三角形的面积公式各是什么 ？平行四边形的面积=底高S=ah三角形的面积=底高2S=ah2Evaluation only.Evaluation only. Created wi
9、th Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.一般梯形直角梯形等腰梯形Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Creat
10、ed with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.（二）游戏导入，激趣引新Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
11、 Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.用两个完全一样的梯形拼图 ：你能拼出几种不同的图形？试 一试。动手操作Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd
12、.Copyright 2004-2011 Aspose Pty Ltd.（三）操作思考，探索规律Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.观察两个完全一样的 梯形怎样拼成平行四 边形
13、。演示Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.通过实验可看出，两个完全一样的梯形可以 拼成一个（ ）。拼成的平行四边形的底等于梯形的（ ）与 （ ）的和；拼成的平行四边形的高等于梯
14、形的（ ）。上底下底高下底上底高上底 下底 高平行四边形下底上底平行四边形的底Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.拼成的平行四边形的面积和梯形 的面积与有什么关系？Evalua
15、tion only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.梯形面积平行四边形面积 底高 （上底下底） 高 S(a+b) h 2Evaluation only.Evaluation only. Created w
16、ith Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.（四）及时练习，反馈巩固Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.1.算出下面每个
