“分苹果”PPT课件之一.ppt

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“分苹果”PPT课件之一

学习目标 1.分苹果等实际操作,初步体会有余数除法与生活的密切联系。 2.通过实际操作抽象出有余数除法的书写格式,并体会余数一定要比除数小。 本节课小结 通过分苹果的实际操作,初步学习认识到除法,并能计算简单的除法,掌握除法的竖式计算。 * 北师大版二年级数学下册 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 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. 每盘放5个苹果,20个苹果可以放几盘? Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 点击头像 下一步 小明 小丽 小刚 小红 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 20-5 -5 -5 -5 =0 可以放4盘 返回 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ( )五二十 四 可以放4盘 返回 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 可以放4盘 20÷5= 4 返回 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 20÷5 = ) 2 0 5 4 2 0 0 4 要分的苹果总数(被除数) 每盘放5个苹果(除数) 可以放4盘(商) 4乘5的积,分走的苹果数 表示分完了,没有剩下的 (盘) 也可以用竖式计算. 返回 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ) 8 4 2 8 0 ) 4 0 8 5 4 0 0 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ) 3 5 7 5 3 5 0 ) 4 8 6 8 4 8 0 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ) 3 2 8 4 3 2 0 ) 5 4 9 6 5 4 0 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 努力吧! Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004

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