内容正文:
我们身体上的“尺”
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苏教版二年级上册
综合与实践
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认识“身体尺”
你的一拃、一步大约各是多少厘米?
一庹大约比1米多多少厘米?
一脚(穿上鞋后)大约长多少厘米?
先量一量,再填表。
认识“身体尺”
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一步长50厘米。
一脚长22厘米。
一拃、一步、一庹、一脚,都是我们身体上的“尺”。
认识“身体尺”
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你知道1米大约有几拃?大约有几步?大约有几脚长?先量出1米,再用这些“身体尺”量一量。
1米大约有7拃。
1米大约有2步。
1米大约有5脚长。
认识“身体尺”
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用“身体尺”量
量课桌的长,你准备选择哪种“身体尺”?量黑板、教室的长呢?
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课桌的长,可以用拃来量。
黑板的长,可以用庹来量。
教室的长,可以用步来量,也可以用脚来量。
用“身体尺”量
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在教室或校园里选择一些物体,用“身体尺”量出它们的长度,再和同学交流。
用“身体尺”量
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回顾测量的过程,你有哪些收获和体会?
用“身体尺”量
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用“身体尺”测量很方便。
“身体尺”能帮助我们记住长度单位和解决实际问题。
要得到准确的结果,还要用尺量。
用“身体尺”量
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课后作业
完成练习册本课