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一、被忽视了十几年的小细节俗话说,细节决定成败。老师们在教学中也都很注重细节,但是有一个细节已经被忽视了十几年,那就是苏教版五年级上册“一一列举”策略的例1教学。2014版(新版)五年级上册第七单元“解决问题的策略”例1要求“用22根1米长的木条围一个长方形花圃,怎样围面积最大?”为了解决这一问题,就要把各种不同的围法“一一列举”出来,并且教材中出示了如下的一段文字和表格加以引导:
A small detail that has been overlooked for more than a decade As the saying goes, details determine success or failure. Teachers also pay great attention to detail in teaching, but one detail has been neglected for more than ten years, that is the teaching of Example 1 in the fifth grade of Jiangsu Education Publishing House. 2014 edition (new) fifth grade on the seventh unit “problem-solving strategy ” Example 1 requirements “with 22 1-meter-long wooden fence surrounded by a rectangular garden, how to enclose area?” In order to solve this problem , It is necessary to put out different kinds of enumeration “one by one enumeration”, and the teaching materials show the following paragraphs and forms to guide them: