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1、学习好资料欢迎下载图形的平移教学设计王帆一、教材分析。本节是数学(八年级)(上)(华师大版)第15 章平移与旋转的第一节。它是本章的第一个关于图形变换的内容,它具有承上启下的作用。二、学情分析。学生在七年级下学期已经学习了“轴对称”,初步积累了一定的图形变换的数学活动经验。在此基础上,教材提供一些图片,鼓励鼓励学生探索平移现象的共同特征,动手操作,亲自实验,体验数学活动的乐趣。三、教学目标。1.知识与技能目标:(1)经历观察、欣赏、操作认识图形平移的存在,理解图形平移的意义。(2)理解图形平移的方向与距离是平移的决定因素,掌握图形平移的对应点,对应线段,对应角的识别。2.过程与方法目标:学习好
2、资料欢迎下载经历观察、分析、操作、欣赏以及抽象、概括等过程,以及与他人合作交流的过程,进一步发展空间观念,增强审美意识。3.情感与态度目标:(1)通过收集、感受自己身边“平移”的实例,感受“生活处处有数学”,激发学生学习数学的兴趣。(2)通过欣赏生活中平移图形,使学生感受数学美,体会美的价值所在。4.教学重点与难点:教学重点:掌握图形平移的对应点、对应线段、对应角的识别。教学难点:从生活中的平移现象,归纳平移的概念;理解图形平移的方向与距离是平移的决定因素。四、教学过程。1.设置情境、引入课题。(1)多媒体展示图片:让学生感受到不同的物体运动,联系旧知,让学生体验“世界充满着运动,从天体、星球
3、的运行,到原子、离子的作用,其中最基本的运动是平移、旋转及对称运动。”说出自己身边有哪些运动现象,引入本章的开篇:第15 章 平移和旋转。(2)视频展示:各种生活中的频移现象,引入本节新课:图形的平移。文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 Z
4、D4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5
5、Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文
6、档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP
7、3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T
8、10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 H
9、L3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9R9N9 ZD4O1O5Y10S7文档编码:CP3Y9I2T10S4 HL3H9A9
10、R9N9 ZD4O1O5Y10S7学习好资料欢迎下载【设计意图:从学生熟悉的,感兴趣的游戏出发,感知生活中物体的运动方式,激发学生对本章内容的学习兴趣。】2.启发诱导、探究概念。(1)课件展示:把生活中的动的画面抽象成图形运动,让学生观察,提出问题,思考:A.传送带上的产品,电梯上的人等他们的形状、大小在运动前后是否发生改变?什么发生了变化?B.如果电梯向上走了20m,那么站在电梯上的人向什么方向走了多少米?(2)通过学生观察、讨论,小结:变化的是图形的位置不变的是图形的形状和大小(3)提问:根据上述分析,你能说说怎样的图形运动称为平移吗?在学生回答的基础上小结,并让学生完成学案题目。【设计意
11、图:通过动画演示与图片欣赏,加深学生对生活中平移现象的认识,认识到数学的美。学生探究与合作交流后,从生活中抽象出平移的概念,让学生学会观察,感知生活。】文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8
12、G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV
13、9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L
14、8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT
15、1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R
16、3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档
17、编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10学习好资料欢迎下
18、载3.自主探索、感受新知。(1)平移的决定因素。活动操作:在作业纸的中心点一点A,让这点进行平移,移动后的一点为点 A。观察:小组内互相观察,点A是否都在同一位置上?通过观察后,小结:平移是由移动的方向和距离决定的。(2)平移的方向与距离。多媒体动画演示:小鱼的平移问:小鱼是怎样移动的?生:向右移动了7 个单位。思考:能不能用已有字母表示的射线和线段来代表平移的方向和距离呢?在学生回答的基础上,小结:平移的方向点A到点 A的方向(或点B到点 B的方向等)平移的距离线段AA 的长度(或线段BB 的长度等)问:表示平移的方向和距离的射线和线段所用的字母之间有什么关系吗?文档编码:CD9Q5Y1I8
19、G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV
20、9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L
21、8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT
22、1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R
23、3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档
24、编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9
25、Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10学习好资料欢迎下载生观察回答:对应关系。(3)对应点、对应线段、对应角。动画演示:回忆小学时画平行线的方法(ABC 的平移)如图,将 ABC平移到 ABC 的位置:我们把 ABC和ABC 称为对应
26、三角形。其中点 A和点 A是对应点,A和A称为对应角,线段AB的对应线段是线段 AB。完成学案中的如下题目:点 B的对应点是点;点 C的对应点是点 _;线段 BC的对应线段是线段_;线段 CA的对应线段是线段_;B 的对应角是 _;C 的对应角是 _;ABC平移的方向是 _;ABC平移的距离是 _。观察并体会平移的方向与距离。文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5
27、Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G1
28、0 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G
29、3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L
30、9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W
31、2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B
32、10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码
33、:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10学习好资料欢迎下载小结:平移方向点A到点 A的方向,或点B到点 B的方向,或点C到点 C 的方向。平移的距离线段AA的长度,或线段BB的长度,或线段CC的长度。(4)试一试。a.试一试:在图中,ABC沿着点 A到点 A的方向,平移到 A BC的位置,你知道线段CA的中点 M以及线段 BC上的点 N平移到什么地方去了吗?请在图中标出它们的对应点M 和 N的位置。b.刚才大家所看到的表示对应点的字母基本是相同的,那如果换成完全不同的字母,你
34、还能找到吗?完成学案 A组第一题。如图所示的 ABC和DEF都是等边三角形,其中一个等边三角形经过平移后成为另一个等边三角形。指出点A、B、C的对应点,并指出线段AB、BC、CA的对应线段,A、B、C的对应角.文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8
35、L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1
36、W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3
37、B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编
38、码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q
39、5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G
40、10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9
41、G3E7L8L9 ZT1W2Q8R3B10学习好资料欢迎下载ABCEFG学生独立完成,汇报评价。巩固学生对对应点、对应线段、及对应角的掌握。【设计意图:通过一系列的操作实验,让学生在猜想、验证、归纳活动中,获得知识。体会自主探索的乐趣,获得成功的体验。通过动画演示,让学生更加直观的理解平移的决定因素,引导学生探索结论、感受结论。】4.巩固练习,应用概念。(1)多媒体演示,共同完成:练习1、2、3 题。(2)独立完成学案中的题目,汇报并互评。【设计意图:让学生通过对例题和习题的分析解决,进一步感受并巩固本课所学知识。】5.拓展应用,感受生活。在小学的时候,我们已经运用乐平移的办法来研究问题。多媒
42、体展示想一想,怎样用最快的办法求出这个图形的周长?文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3
43、E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9
44、 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2
45、Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B1
46、0文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:
47、CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y
48、1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10学习好资料欢迎下载讨论研究后得出,平移后可以得到一个周长相等的长方形。(动画演示,让学生更深刻的理解)除了刚才我们所看
49、到的,平移在我们的生活中还有更多的应用,比如图案的设计:多媒体演示图案的设计过程,欣赏各种有一个基本图形平移后设计出来的图案和商标。【设计意图:让学生理解数学来源于生活,更应用于生活。】6.课堂小结。本节课你学到了什么?小组讨论,归纳本节课的内容:平移的定义,平移的决定因素。【设计意图:在交流讨论中,感悟并巩固知识,同时培养学生的归纳总结能力。】五、板书设计。15.1.1 图形的平移平移变化:位置旋转不变:大小形状文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD
50、9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I8G10 HV9G3E7L8L9 ZT1W2Q8R3B10文档编码:CD9Q5Y1I