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tong xin yuan dian chi zuo wei yuan dian chi ji ben mo xing de ju xian ji qi tu po
Author(s): 
Pages: 16-20
Year: Issue:  1
Journal: Education in Chemistry

Keyword:  铜锌原电池原电池模型局限性教学建议化学教学;
Abstract: 铜锌原电池作为学生学习原电池的基本模型,不具备原电池工作原理的普适性,从而导致师生对原电池的理解存在诸多困境.对北京市某示范高中的158名高一学生进行测试发现:绝大部分学生认为"电极材料必然活泼性不同","电极材料的不同是产生电势差的本质原因",学生对原电池工作原理的理解局限于铜锌原电池模型.基于此,构建了原电池认知的通用模型,并提出相应的教学建议.
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