Effect of conceptual change texts accompanied with analogies on understanding of chemical bonding concepts

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2004
Pabuçcu, Aybüke
The purpose of this study was to explore the effects of CCTIA over TDCI for 9th grade students̕ understanding of chemical bonding concepts. Also, the effect of instruction on students̕ attitude toward chemistry as a school subject and the effect of gender difference on understanding of chemical bonding concepts and attitudes toward chemistry were investigated. The subjects of this study consisted of 41 ninth grade students from two classes of a chemistry course in TED Ankara High School. This study was conducted during the 2003-2004-spring semester. The classes were randomly assigned as control and experimental groups. Students in the control group were instructed by TDCI whereas students in the experimental group were instructed by CCTIA. CBCT was administered to both groups as a pre-test and post-test in order to assess their understanding of concepts related to chemical bonding. Students were also given ASTC as a school subject at the beginning and end of the study to determine their attitudes and SPST at the beginning of the study to measure their science process skills. At the end of the study, we administered interviews to the students. The hypotheses were tested by using ANCOVA and ANOVA. The results revealed that CCTIA caused a significantly better understanding of scientific conceptions related to chemical bonding concepts than the TDCI. In addition, these two modes of instruction developed the similar attitude toward science as a school subject. Also, science process skill was a strong predictor in understanding the concepts related to chemical bonding. Alternatively, no significant effect of gender difference on understanding the concepts about chemical bonding and on students̕ attitudes toward chemistry as a school subject was found.

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Citation Formats
A. Pabuçcu, “Effect of conceptual change texts accompanied with analogies on understanding of chemical bonding concepts,” M.S. - Master of Science, Middle East Technical University, 2004.