Thai Grade 11 Students' Alternative Conceptions for Acid-Base Chemistry

Autor/inn/en	Artdej, Romklao; Ratanaroutai, Thasaneeya; Coll, Richard Kevin; Thongpanchang, Tienthong
Titel	Thai Grade 11 Students' Alternative Conceptions for Acid-Base Chemistry
Quelle	In: Research in Science & Technological Education, 28 (2010) 2, S. 167-183Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0263-5143
Schlagwörter	Forschungsbericht; Classification; Comprehension; Diagnostic Tests; Chemistry; Foreign Countries; Grade 11; Misconceptions; Secondary School Science; High School Students; Scientific Concepts; Concept Formation; Test Construction; Test Validity; Science Instruction; Thailand + Suchen Sie Ihr Suchwort? Classification system; Klassifikation; Klassifikationssystem; Verstehen; Verständnis; Diagnostic test; Diagnostischer Test; Chemie; Ausland; School year 11; 11. Schuljahr; Schuljahr 11; Missverständnis; High school; High schools; Student; Students; Oberschule; Schüler; Schülerin; Studentin; Concept learning; Begriffsbildung; Testaufbau; Testvalidität; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	This study involved the development of a two-tier diagnostic instrument to assess Thai high school students' understanding of acid-base chemistry. The acid-base diagnostic test (ABDT) comprising 18 items was administered to 55 Grade 11 students in a science and mathematics programme during the second semester of the 2008 academic year. Analysis of students' responses from this study followed the methodology outlined by Calik and Ayas. The research findings suggest that the ABDT, the multiple choice diagnostic instrument, enables researchers and teachers to classify students' understanding at different levels. Most students exhibited alternative conceptions for several concepts: acid-base theory, dissociation of strong acids or bases, and dissociation of weak acids/bases. Interestingly, one of the concepts that students appeared to find most difficult, and for which they exhibited the most alternative conceptions, was acid-base theory. Some alternative conceptions revealed in this study differ from earlier reports, such as the concept of electrolyte and non-electrolyte solutions as well as the concentration changes of H[subscript 3]O[superscript +] and OH[superscript -] in water. These research findings present valuable information for facilitating better understanding of acid-base chemistry by providing insight into the preventable and correctable alternative conceptions exhibited by students. (Contains 3 tables.) (As Provided).
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Begutachtung	Peer reviewed
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10