The effects of problem-based learning instruction on university students' performance of conceptual and quantitative problems in gas concepts


Creative Commons License

Bilgin I., Şenocak E., Sözbilir M.

Eurasia Journal of Mathematics, Science and Technology Education, cilt.5, sa.2, ss.153-164, 2009 (SCI-Expanded) identifier

Özet

This study aimed at identifying specifically prospective chemistry teachers’ difficulties in

determining the differences between the concepts of chemical thermodynamics and

kinetics. Data were collected from 67 prospective chemistry teachers at Kâzım Karabekir

Education Faculty of Atatürk University in Turkey during 2005-2006 academic year. Data

collection performed through two different instruments. In order to determine

prospective teachers’ difficulties in determining the differences between the concepts of

chemical thermodynamics and kinetics, a diagnostic test composed of five open-ended

questions was specifically developed for this study. Thirteen participants (out of 67) were

also interviewed in order to gather more information about the written responses. The

analysis of results showed six major misconceptions about the difference between the

concepts of chemical thermodynamics and kinetics indicating that the prospective

chemistry teachers attempted to interpret the kinetics of several phenomena by using

thermodynamics data. The findings reported here may contribute to understanding of

undergraduates’ difficulties and can be utilized in research that develops teaching strategies

to overcome such difficulties.