전기분해 생성물을 예상하는 과정을 통해 화학교사들과 예비 교사들이 가지는 개념의 문제점에 대한 분석
The Problems of Chemistry Teachers’ and Pre-service Teachers’ Conceptions in the Prediction of Electrolysis Products
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Abstract
The purpose of this study was to search pre-service teachers and chemistry teachers conceptionsrelated to electrolysis process by predicting electrolysis products in NaI solution. A questionnaire developed by theresearchers and following interviews were adopted for the research. By the methods, the conceptions of the groups werecompared. Also, the relationship between their conceptions and explanations of chemistry I textbooks and general chem-istry books was examined. From the analysis, it was found that standard electrode potential when they predicted products of electrolysis. Most of the chemistry teachers could use stan-dard electrode potential, but it was difficult to understand water electrolysis in redox reaction. The explanations of chem-istry I textbooks also contained misconceptions.