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Direct linkLu, Shanshan; Bi, Hualin; Liu, Xiufeng – Chemistry Education Research and Practice, 2019
Students have various conceptions of electrolytes in learning chemistry. The aim of this study is to identify 10th grade students' understanding of the electrolyte concept by using a phenomenographic method. Eight students, whose abilities were at different levels, were selected and interviewed. The findings show that four distinctive categories…
Descriptors: Grade 10, High School Students, Comprehension, Scientific Concepts
Lu, Shanshan; Bi, Hualin – Chemistry Education Research and Practice, 2016
To assess students' conceptual understanding levels and diagnose alternative frameworks of the electrolyte concept, a measurement instrument was developed using the Rasch model. This paper reports the use of the measurement instrument to assess 559 students from grade 10 to grade 12 in two cities. The results provided both diagnostic and summative…
Descriptors: Scientific Concepts, Scientific Literacy, Concept Teaching, Knowledge Level
