除法初步认识1.ppt

除法的初步认识 教学目标 知识目标：使学生认识除法的初步含义，掌握除法算式的读法和写法及各部分名称。 能力目标： 培养学生的动手能力 思想目标：使学生初步感受到任何知识来源实践，一切认识是在实践中产生的，从而体会到实践第一的辨证唯物主义观点。 教学重点.难点 理解平均分的含义，掌握除法算式各部分名称。 * 除法的初步认识 洛城中心小学 李文君 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 教学的重点、难点 教具 教学过程 导如新课 学习新课 例一 例二 练习 例三 巩固练习 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. 把六个桃子平均放在三个盘里，每盘几个 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 把六个桃子平均放在三个盘里，每盘二个。 用除法表示 6÷3=2 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. 先摆一摆，再写出算式。 12 ÷ 3 = 4 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. 先摆一摆，再写出算式。 12 ÷ 4 = 3 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 把8个皮球平均放在两个盒子里，每盒几个？ 8÷2=4 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 把10个扣平均分成2份，每份是 个。 ÷ 2 10 = 5 … 被除数 … 除数 … 商 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 练 习 十 二 把8平均分成 份，每份是 10 2 = 5 把 平均分成 份，每份是 10 5 4 2 2 Evaluation only. Created with Aspose.Slid