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The development of a learning program for enhancing the skills of control variables and the effects of its applications

Title
The development of a learning program for enhancing the skills of control variables and the effects of its applications
Authors
Lee Y.Kang S.
Ewha Authors
강순희
SCOPUS Author ID
강순희scopus
Issue Date
2011
Journal Title
Journal of the Korean Chemical Society
ISSN
1017-2548JCR Link
Citation
vol. 55, no. 3, pp. 519 - 528
Indexed
SCOPUS; KCI scopus
Abstract
The main purpose of this study was to develop a teaching program, especially designed to improve the skills of control variables. The secondary purpose was to investigate the effect of the program on enhancing students' scientific reasoning and understanding. The program was designed based on the 3-step learning model: i.e. students recognize the necessity of controlling the variables (step 1), perform their own experiments (step 2), and reflect on their variables control process (step 3). The program included 9 topics of increasing difficulty. In results, Lawson's SRT scores increased in both experimental and control groups after application of the program, but the difference was not statistically significant. After the application, there was an increase in type A and type B which implied that students' skills of control variables was improved. In addition, responses of students in the experimental group to the open-ended items showed that it was challenging for them to think scientifically and critically when controling variables, but they ended up feeling proud of their achievement after the program.
DOI
10.5012/jkcs.2011.55.3.519
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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