Enhancing Grade 10 Thai Students' Stoichiometry Understanding and Ability to Solve Numerical Problems via a Conceptual Change Perspective

Autor/inn/en	Dahsah, Chanyah; Coll, Richard K.; Sung-ong, Sunan; Yutakom, Naruemon; Sanguanruang, Sudjit
Titel	Enhancing Grade 10 Thai Students' Stoichiometry Understanding and Ability to Solve Numerical Problems via a Conceptual Change Perspective
Quelle	In: Journal of Science and Mathematics Education in Southeast Asia, 31 (2008) 1, S.1-43 (43 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0126-7663
Schlagwörter	Stoichiometry; Chemistry; Grade 10; Concept Formation; Scientific Concepts; Foreign Countries; Problem Solving; Science Instruction; Secondary School Science; Secondary School Students; Mathematical Formulas + Suchen Sie Ihr Suchwort? Stöchiometrie; Chemie; Concept learning; Begriffsbildung; Ausland; Problemlösen; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Sekundarschüler; Mathematische Formel
Abstract	The international literature suggests students frequently resort to the use of formulae when solving stoichiometry problems without understanding the concepts. In prior work we identified Thai student alternative conceptions and ability to solve numerical problem for stoichiometry. The results indicate that many Thai students also hold alternative conceptions and that their ability to solve numerical problems is related to their understanding of the concepts. In the present work we describe an intervention consisting of the development of a series of stoichiometry learning units (SLUs) based on a conceptual change approach. The units involve five steps: express ideas, share ideas, challenge ideas, accommodate ideas, and apply ideas. The SLUs were implemented by three volunteer teachers in three Grade 10 science classrooms from three different schools. The findings suggest that the conceptual change approach can be useful in addressing student alternative conceptions, developing student conceptual understanding, and enhancing students' ability to solve numerical problems. (Contains 5 figures.) (As Provided).
Anmerkungen	Southeast Asian Ministers of Education Organization Regional Centre for Education in Science and Mathematics (SEAMEO RECSAM). Jalan Sultan Azlan Shah, 11700 Gelugor, Penang, Malaysia. Tel: +011-60-4-658-3266; Fax: +011-60-4-657-2541; e-mail: director@recsam.edu.my; Web site: http://www.recsam.edu.my
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10