二年级上册第一单元 长度单位

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米的长度表象,掌握用米测量物体长度的方法。
2.理解厘米和米之间的联系,知道1米=100厘米。
一、情景导入
这是一把学生尺,长 20 厘米,谁愿意用它 来量一量黑板的长?
我来!我来!
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长度单位
认识米和用米量
R·二年级上册
学习目标
1.初步认识长度单位“米”,了解“米”产生的实际意义,
建立1米的长度表象;知道米和厘米之间的源自文库率是100,会
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简单的换算;会用米尺测量物体的长度,会估测较长物体 PPT背景:www.1ppt.com/beijing/
拿这把米尺试试。
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的长度。
2.让学生经历测量、观察、比较等学习活动,感知1米 的实际长度。
3.积极愉快地进行操作学习,体会数学与生活的 密切联系。
学习重、难点
1.建立1
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