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cong shu xue shi liao zhong ti wu shu xue tan jiu de li cheng yi " yuan de ren shi " jiao xue wei li
Author(s): 
Pages: 15-16
Year: Issue:  6
Journal: XIAOXUE JIAOXUE

Abstract:  教师在钻研教材时,应不断地追问:这些数学知识是如何形成的?它包含着哪些数学背景知识?它蕴涵着怎样的数学思想?在钻研六年级上册"圆的认识"时,我们提出了以下问题:在人类的认识史上,圆是怎样被逐步认识的?了解圆的认识历史,可以给我们的教学以怎么样的启发?在人们的日常生活与生产中,有许多物品的某一个或几个面是做成圆形的,它们各是利用了圆的什么特征?
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