@article {125,
	title = {A HANDS-ON ACTIVITY TO PROMOTE CONCEPTUAL CHANGE ABOUT MIXTURES AND CHEMICAL COMPOUNDS},
	journal = {Journal of Baltic Science Education},
	volume = {6},
	year = {2007},
	month = {March/2007},
	type = {Original article},
	chapter = {35-46},
	abstract = {The study revealed students{\textquoteright} 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{\textquoteright} ideas were elicited by a test consisting of six open-ended questions. An intervention designed based on students{\textquoteright} 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{\textquoteright} 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.},
	keywords = {chemical compound, hands-on activity, mixture, students{\textquoteright} understanding},
	issn = {1648-3898},
	url = {http://oaji.net/articles/2014/987-1404286868.pdf},
	author = {Bayram Co{\c s}tu and Suat {\"U}nal and Alipa{\c s}a Ayas}
}
