Woldie Belachew BALEA


The main purpose of the study was to determine pre-service chemistry teachers’ (PCTs) understanding of nomenclature related concepts of aliphatic hydrocarbons (AHCs). The study investigated PCTs understanding on nomenclature related concepts of AHCs. A qualitative case study approach, through in-depth interview, was employed to look into PCTs understanding. Twelve PCTs, from two intact classes of 87 students, were selected randomly for the interview. The participants were second year PCTs registered in Introductory Organic Chemistry I course in Arbaminch College of Teachers Education, Ethiopia in the year 2017 G.C. A semi-structured interview was used for assessing understanding of PCTs in relation to nomenclature of AHCs. A framework analysis approach was applied to analyze interview data. The results of analysis revealed that the PCTs in the Intervention Group (IG) had better acquisition of nomenclature related concepts than those in the Comparison Group (CG) after conceptual change instructional approach through the use of Conceptual Change Texts (CCTs). The PCTs’ responses showed several conceptions which are at variance with chemist’s outlook.

Keywords: Pre-service chemistry teachers, hydrocarbons, conceptual change, nomenclature, IUPAC system


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