Knowledge State Analysis of Ionic Equation for Middle School Students

Journal of the Korean Chemical Society

Heojeong Yoon¹  Yoonha Lee¹  Youngshin Kim¹ 

关键词: Ionic equation;    Ionic compound;    Chemical formulae;    Knowledge state analysis methods;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The purpose of this study is to investigate middle school students' understanding of ionic equation. Two hundreds and nineteen middle school students were participated in the study. After six class hours of learning 'electrolyte and ion' unit, instrument was implemented to evaluate students' understanding of ionic process and ability to write ionic equation. We analyzed the influence of characteristics of ionic compounds on correct answer rate. In addition, knowledge state of students required for writing ionic equation was analyzed. The results were as follows: First, ionic compounds tested were categorized into six groups. The correct answer rate was different depending on the characteristics of each group. Second, knowledge state required for writing ionic equation was structured. Based on results some suggestion were made to develope effective learning strategy for understanding ionic equation.

【 授权许可】

Unknown