African Journal of Chemical Education

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Development of ontological knowledge representation: learning hydrocarbons with double bonds at the secondary level

TN Hrin, MD Segedinac, DD Milenkoviæ


This paper presents the development of an ontological knowledge organization and representation, and explains how application of appropriate methods for its visualization can lead to meaningful learning. We have applied systemic diagrams (SD) as a method of visualizing ontological knowledge organization. Seven ontological models for "Hydrocarbons with double bonds", following the development from concept map to systemic diagram, are constructed. Chemical properties of alkenes are particularly elaborated and represented as a final systemic diagram (SDf). [AJCE, 3(2), June 2013]

AJOL African Journals Online