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RESEARCH PAPER
Optimizing Pre-service Chemistry Teachers Understanding in Reaction Related Concepts of Alipahtic Hydrocarbons
1
Arbaminch College of Teachers Education, ETHIOPIA
Publication date: 2020-06-22
EURASIA J. Math., Sci Tech. Ed 2020;16(9):em1875
KEYWORDS
ABSTRACT
The prime purpose of this investigation was to improve Pre-service Chemistry Teachers (PCTs)
understanding of reaction related concepts of Aliphatic Hydrocarbons (AHCs). Participants were
12 PCTs selected from a pool of 87 second year PCTs taking Introductory Organic Chemistry
course in Arbaminch college of Teachers Education, Southern Nations, Nationalities and Peoples
Regional State (SNNPRS), Ethiopia. The study was carried out in 2017 G.C. The selection of
partakers was made on random basis. Case study method was employed in this in-depth
investigation. The study was conducted in 7 weeks duration covering all concepts of AHCs.
Conventional Instructional Approach (CIA) was employed in the Comparison Group (CG) and
Conceptual Change Instructional Approach (CCIA) through the use Conceptual Change Texts
(CCTs) was used in the Intervention Group (IG). A semi-structured interview was used for
evaluating understanding of PCTs in relation to reactions of AHCs. To analyze the interview data,
a framework analysis approach was followed. Analyses showed that the PCTs in IG had improved
gaining of reaction related concepts of AHCs than those in CG. Participants in the IG reflected
reduced Alternative Conceptions (ACs) and more Correct Conceptions (CoCs) than those in the
CG. Reduced ACs and more CoCs from analyses of detailed recordings of PCTs responses
confirmed enhanced understanding of reactions of AHCs in the IG.
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