A HANDS-ON ACTIVITY TO PROMOTE CONCEPTUAL CHANGE ABOUT MIXTURES AND CHEMICAL COMPOUNDS

Bayram Coştu; Suat Ünal; Alipaşa Ayas

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A HANDS-ON ACTIVITY TO PROMOTE CONCEPTUAL CHANGE ABOUT MIXTURES AND CHEMICAL COMPOUNDS

Title	A HANDS-ON ACTIVITY TO PROMOTE CONCEPTUAL CHANGE ABOUT MIXTURES AND CHEMICAL COMPOUNDS
Publication Type	Journal Article
Year of Publication	2007
Authors	Coştu, B, Ünal, S, Ayas, A
Journal	Journal of Baltic Science Education
Volume	6
Issue	1
Start Page	35-46
Date Published	March/2007
Type of Article	Original article
ISSN	1648-3898
Other Numbers	ICID: 482288
Keywords	chemical compound, hands-on activity, mixture, students’ understanding
Abstract	The study revealed students’ conceptions about mixtures and chemical compounds and also investigated the effects of a hands-on activity designed to improve their understanding of differences between two concepts. The sample consists of 52 seventh grade students in a primary school. Students’ ideas were elicited by a test consisting of six open-ended questions. An intervention designed based on students’ preconceptions. The intervention, in which two different colored balls of clay were used, comprises a hands-on activity whose aim was to help students distinguish essential differences between mixtures and chemical compounds. After the intervention, the test was re-administered to the sample as a post-test. Both qualitative and quantitative assessment indicated positive effects of the intervention on students’ understanding. The results suggest that teachers and curriculum developers should take into account this kind of activities in order to help students understand confusing concepts.
URL	http://oaji.net/articles/2014/987-1404286868.pdf
Refereed Designation	Refereed
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