2022年人教版小学数学三年级下册第六单元《面积的复习与整理》教学设计 .pdf

学习好资料欢迎下载面积的整理和复习教学目标：1、通过对面积这一章知识的疏通和整理，学生能进一步熟练掌握面积的概念、面积单位及进率和长方形、正方形面积的计算这些知识。2、在各种形式的练习中进一步巩固面积单位的应用及进率间的转化，以培养孩子的数感，丰富孩子的生活经验和数学经验。3、引导孩子们能活用所学知识，正确计算长方形、正方形面积，解决生活中的实际问题。教学重点：指导学生整理学过的面积知识，使学生形成完整清晰的知识结构，并能解决实际问题。教学难点：在整理中构建面积知识之间的联系，正确地解决有关的实际问题。教学、学具准备：面积为 1 平方厘米、1 平方分米、1 平方米的纸片各一张.一、创设情境，导入复习（1）教师先投影出示一个长方形和一个正方形：师：同学们，请你们仔细看图，它们都叫什么？（长，宽，边长、周长，面积）（2）出示各种图形，用阴影表示出它们的面积。师：阴影表示的是这些图形的什么？（面积）学习好资料欢迎下载师：那今天我们就来复习面积这个章节的知识点。（板书：整理与复习：面积）二、回顾整理，建构网络（一）自主整理，实施创造师：现在老师要求你们以小组为单位，在 5 分钟内对面积这一章的知识进行自主复习，看我们学过哪些知识？写下来，整理一下。5 分钟后学生汇报：不一定要求一个学生都说得很全面，允许学生补充。如果学生能说得全面的，可以再请一个孩子复述一遍，教师相应地进行板书：面积的含义、面积单位及进率、面积计算。设计意图：先请孩子们总体回顾，呈现知识树的树干，以便孩子们抓住知识点有序地进行复习。（二）完善整理，沟通联系。师：刚才同学们说的真好，老师也整理了一下这些知识，看看老师是怎么整理的：（1）面积的含义：物体的表面或封闭图形的大小就是它们的面积。（2）常用的面积单位及面积单位间的进率。（从大到小的顺序）平方千米公顷平方米平方分米平方厘米100 10000 100 100（3）长方形和正方形面积的计算：文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8学习好资料欢迎下载长方形的面积=长宽正方形的面积=边长帮助学生重建1 平方厘米、1 平方分米、1 平方米的表象及举例说明 1 公顷和 1 平方千米的大小。师：通过刚才的复习，你认为哪个计量单位表示的面积最大呢？它们分别适合在生活中计量哪些物体的面积时使用这些单位呢？你来判断一下，用线连起来。课桌面学校的操场我国的领土橡皮擦教室龙翔广场平方厘米平方分米平方米公顷平方千米三、自主检测、巩固提高1.请你填上适当的单位黑板的大小约为 4（）我国的陆地面积大约是960 万（）数学书的封面大约是320（）教室地面约 56（）张老师身高 180（）2判断对错，并说明理由。（1）5 平方千米 500 公顷（）（2）边长 4 米的正方形，它的周长和面积相等。（）（3）一棵大树高 16 平方米。（）文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8学习好资料欢迎下载（4）用 9 个 1 平方厘米的正方形拼成一个长方形或大正方形，它们的面积相等。（）3.认真读题，仔细填空。5平方米=（）平方分米600 平方分米=（）平方米5 平 方 千 米=（）公 顷20000 公 顷=（）平方米有一块长方形西瓜地，长60 分米，宽 2 米，面积是（）平方分米有一个正方形的游泳池，边长25 米，面积是（）平方米3、帮忙解决夹湖中心小学五年级一班的卫生区是一个长30 米，宽 3 米的长方形地面。（1）五 3 班卫生区的打扫面积是多少？（2）一个同学每分钟打扫6 平方米，打扫完需要多少分钟？（3）如果有 5 名同学打扫 4 分钟，能打扫完吗？学生独立完成，集体订正。（设计意图：通过检测，使学生发现自己掌握不牢固的知识点，学生正确地评价自己，进一步激励学生在知识、技能、情感态度上进行自我完善。）四、小结：通过这节课的复习你对那些知识有了更深刻的了解？文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8文档编码:CR1P9D3E6C7 HF8S9I4M7O8 ZW4M7D10R7Y8