四年级下册数学课件 4.2 轴对称图形 北京版 34张

(共34张PPT)
轴对称图形
顺义区高丽营学校
执教教师：张雪
北京版四年级下册
01
01
英国
瑞士
俄罗斯
加拿大
沿一直线对折后，两边能够完全重合的图形就是
轴对称图形
01
折一折！
折痕所在的直线，就是这个图形的
对称轴
01
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画一画！
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小组合作要求：
1、说说你们是怎样找到它的另一半的？并标出每个点的对称点。
2、说说你们还发现了什么？
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对称点到对称轴的距离（
）；
对称点的连线与对称轴互相（
）
在轴对称图形中：
相等
垂直
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1
4
B'
C
C'
2
轴对称
A
A'
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说收获！
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六、布置作业
1.寻找生活中的轴对称图形
2.设计一幅漂亮的轴对称图形作品
PPT模板下载：www./moban/
行业PPT模板：www./hangye/
节日PPT模板：www./jieri/
PPT素材下载：www./sucai/
PPT背景图片：www./beijing/
PPT图表下载：www./tubiao/
优秀PPT下载：www./xiazai/
PPT教程：
www./powerpoint/
Word教程：
www./word/
Excel教程：www./excel/
资料下载：www./ziliao/
PPT课件下载：www./kejian/
范文下载：www./fanwen/
试卷下载：www./shiti/
教案下载：www./jiaoan/
字体下载：www./ziti/
感谢聆听