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KMID : 1059520070510010093
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Journal of the Korean Chemical Society
2007 Volume.51 No. 1 p.93 ~ p.100
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An Analysis and Improvement of the Experiments for Comparing Properties of a Mixture with a Compound of Iron and Sulfur in the Middle School Science Textbooks
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Park Kyong-Hee
Kang Seong-Joo
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Abstract
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The purposes of this study were to analyze problems in the experiments for comparing properties of a
mixture with a compound of iron and sulfur and then to suggest the improved experiments. For this study, the experimental
methods in 9th science textbooks described were analyzed and middle school science teachers were asked to conduct
the experiment according to the process of the textbook and to point problems of the experiment. Two alternative
experiments, which improves the problems of the toxic and provocative experiment and of distinction between a mixture
and a compound by magnetic properties, were proposed. The two experiments were applied to the 10 science teachers
and 60 students from a “S” middle school. They responded that the experiments were suitable for comparing properties
of a mixture and a compound and helpful to understand the concept.
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KEYWORD
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Comparing properties of a mixture with a compound, Middle Science Textbooks, Improvement of the Experiments
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