小学数学四年级下册教材.ppt

小学数学四年级下册教材 分析与思考千山区教师进修学校黄秀萍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.本册教材的整体介绍 数与代数第一单元 小数的认识和加减法 第三单元 小数乘法 第五单元 小数除法 第七单元 认识方程 几何与图形第二单元 认识图形 第四单元 观察物体 统计与概率第六单元 游戏公平实践活动结合具体学习内容设计的实践活动 独立设置的实践活动 整理与复习整理与复习(一)整理与复习(二)总复习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.各单元内容介绍与教学建议数与代数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.第一单元 小数的认识和加减法教 学 内 容建议课时数 （11） 小数的意义4 测量活动：单位的换算 比大小：比较小数的大小 练习一1 购物小票：小数加减法运算（一）4 量体重：小数加减法运算（二） 歌手大赛：小数加减运算（三） 练习二2Evaluation 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.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.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.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.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.思考一： 1、学生在解决问题的过程中，总是根据自己的已有经 验来解决的，他们的经验不同解决问题的策略也不 同，算法也呈现着多样化。

教师如何善待学生的想 法，鼓励学生思维的积极参与呢？——尊重学生的想法，尊重学生已有的认知水平 ，在“最近发展区”内引导学生深入思考 2、面对学生的不同算法，教师如何引导学生进行有效 的交流？——引导学生对这些算法的算理进行分析，鼓励学 生说出自己的看法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.教学内容建议课时数 （10）文具店：小数乘整数的乘法3 小数点搬家：小数点移动引起小数大 小变化的规律街心广场：积的位数与乘数的位数之 间的关系3包装：小数乘小数的乘法 爬行最慢的哺乳动物：解决小数乘法 的简单问题4手拉手：小数的混合运算练习三第三单元 小数乘法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.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.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.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.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.思考二：如果你在课堂中遇到学生对问题产生争议这种情况会如如 何处理？ ——留给学生讨论和思考的空间，让学生在交流和讨论中梳理自己的 思路。

如何在课堂教学中培养学生的问题意识？——善于在学生的思维细节点上进行提问，使学生逐步养成学生深入思 考问题的习惯，培养学生的问题意识如何在自己的课堂教学中关注教学细节？——细节成就完美，教师要细心呵护自己的课堂，关注学生在学 习中遇到的困难，关注学生思维火花的闪现，抓住课堂中生成性的资 源，促进学生的数学学习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.教学内容建议课数 （10节 ） 精打细算：小数除以整数的除法1参观博物馆：整数除整数，商是小数的除法3谁打的时间长：小数除小数的除法人民币兑换：积、商的近似值6谁爬得快：循环小数电视广告：小数四则混合运算练习四第五单元 小数除法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.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.Evaluation only.Evaluation only. Created with Aspose.Slides for。