苏教版数学五年级上册《解决问题的策略》教学同步课件.ppt

* * 五年级数学（下册） Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ●大市口 解放路公交站● 长江路公交站● 中华路 ● Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 两杯果汁共400毫升 甲杯倒入乙杯40毫升 现在两杯果汁同样多现在 　原来 甲杯／ml乙杯／mlEvaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例２小明原来有一些邮票，今年又收集了 ２４张．送给小军３０张后，还剩５２张．小 明原来有多少张邮票？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例２小明原来有一些邮票，今年又收集了 ２４张．送给小军３０张后，还剩５２张．小 明原来有多少张邮票？ 1、用以前学过的方法整理条件！ 2、你准备用什么策略解决这个问题？ 3、和你的同桌轻声交流你的想法！ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例２小明原来有一些邮票，今年又收集了 ２４张．送给小军３０张后，还剩５２张．小 明原来有多少张邮票？ 原来有？张 又收集24张 送给小军30张 还剩52张 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例２小明原来有一些邮票，今年又收集了 ２４张．送给小军３０张后，还剩５２张．小 明原来有多少张邮票？ 原来有？张 又收集24张 送给小军30张 还剩52张（）（）（ 52 ） +24—30 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.+40－ 30 ()()( 20)÷　7×9 ()()( 54 ) 10 50 6 42 填一填: Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 玩一玩 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 小军收集了一些画片，他拿出画片的 一半还多1张送给小明，自己还剩25张。 小军原来有多少张画片？ 练一练 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 小华去参观动物园,先从大门向北走2格到熊猫馆,再 向西北走1格到百鸟园,再向东走4格到猴山,最后向 南走2格到蛇馆。 4 3 2 1 0 1234567 北 ●蛇馆 ●猴山 ● 百 鸟 园 ●熊猫馆 ●大门 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.