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《中小学数学》(小学版)2011年第9期刊登了《“公顷的认识”教学设计与说明》,在这篇文章中,编辑老师对其中的一个环节“体验1公顷的大小”进行了质疑:有必要让小学生亲自体验1公顷有多大吗?这是体验的事吗?……其次,有必要体验吗?编辑老师在文章最后抛出了一个问题:能否省掉对“1公顷”进行体验这个教学环节?要研究这个问题,首先要了解一个词:估测。何谓估测,即测量估计,是上世纪70年代兴起的研究热
“Primary and secondary mathematics” (elementary school) 2011 ninth issue published “” hectares of understanding “teaching design and description ”, in this article, editorial teacher for one of the links “to experience the size of 1 hectare ”Question: Is it necessary for primary school students to experience 1 hectare how much? Is this a matter of experience? ... Second, is it necessary to experience? Editing teacher at the end of the article threw a question: can save the right “1 hectare ” to experience this teaching link? To study this problem, we must first understand the word: estimation. What is estimation, that is, measurement estimation, is the research fever that emerged in the 1970s