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合理“解压”教材构建多元表征——“列方程解决实际问题”活动单设计与反思

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摘要 “列方程解决实际问题”是苏教版《数学》六年级上册“方程”单元第一课时的内容。本节课旨在让儿童经历将现实问题抽象为方程的过程,进一步体会方程是刻画现实世界中等量关系的数学模型,体验方程的思想方法及价值.并在解决实际问题的过程中,理解和掌握形如似ax±b =c的方程的求解方法。一位老师初次设计的一个主要活动单如下。
作者 汤卫红
出处 《小学数学教师》 2011年第3期40-46,共7页
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