[苏教版]六年级数学上册演示课件 分数除法的简单应用.pptVIP

苏教版六年级数学上册 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 教学目标 1. 让同学们学会解决“已知一个数的几分之几是多少求这个数”的简单实际问题，进一步体会分数乘、除法之间的内在的联系，加深对分数表示的数量关系的理解。 2. 在同学们探索解决问题方法的过程中，进一步培养同学们独立思考的能力。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 小瓶里的果汁是大瓶的 。 600ml ?ml 3 2 大瓶果汁有多少毫升？ 大瓶和小瓶的果汁 量有什么关系？ 大瓶的果汁量× =小瓶的果汁量 3 2 求大瓶果汁量可以列方程解。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 李刚早上喝了一盒牛奶的 ，正好 2 1 5 2 喝了 升。这盒牛奶有多少升？ （先写出数量关系式，再解答） 一盒牛奶量× = 喝掉的牛奶量 2 1 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 一条裤子25元，是一件上衣价格的 8 5 。一件上衣多少元？ 上衣价格× = 裤子价格 8 5 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1.先把数量关系式补充完整，再解答。 （1）一桶油用去 ，正好用去12千克。 这桶油重多少千克？ 5 3 一桶油的千克数× = 用去的千克数 5 3 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3 2 白兔只数× = 黑兔只数 3 2 1.先把数量关系式补充完整，再解答。 （2）学校饲养组养黑兔12只，是白兔 只数的 。饲养组养白兔多少只？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Pr