Thai grade 10 and 11 students’ understanding of stoichiometry and related concepts

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dc.contributor.authorDahsah, Chanyah
dc.contributor.authorColl, Richard K.
dc.date.accessioned2013-12-12T03:54:33Z
dc.date.available2013-12-12T03:54:33Z
dc.date.copyright2008-09-17
dc.date.issued2008
dc.description.abstractThe research reported in this case study explores the understanding of stoichiometry and related concepts of Thai science students in grades 10 and 11 after major national curriculum reforms. Students’ conceptions and alternative conceptions were investigated using a questionnaire - the Stoichiometry Concept Questionnaire (SCQ) (N = 97), which consists of 16 multiple-choice items, the choices for which respondents are required to provide reasons. The findings suggest that less than half of the students surveyed hold what is considered by a panel of experts to be a scientifically acceptable understanding for the conceptions investigated. The main student alternative conceptions are that one mole of all substances has a volume of 22.4 L at STP, that a solution that contains a greater mass of solute has the higher molar concentration, and that the limiting reagent is the reagent for which the lowest mass of reactant is present. Examination of students’ reasons suggests that they resort to the use of algorithms with little understanding of the underlying concepts. It thus seems the national educational reforms have not resulted in a sound understanding of some science concepts. It is recommended that curriculum developers should specify a need for conceptual understanding along with capability in numerical problem-solving in their learning objectives, and link this to assessment regimes that reward conceptual understanding. A need for on-going professional development seems essential if the intentions of the Thai curriculum reforms are to be realized.en_NZ
dc.identifier.citationDahsah, C., & Coll, R. K. (2008). Thai grade 10 and 11 students’ understanding of stoichiometry and related concepts. International Journal of Science and Mathematics Education, 6(3), 573-600.en_NZ
dc.identifier.doi10.1007/s10763-007-9072-0en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/8339
dc.language.isoenen_NZ
dc.publisherSpringeren_NZ
dc.relation.isPartOfInternational Journal of Science and Mathematics Educationen_NZ
dc.relation.ispartofInternational Journal of Science and Mathematics Education
dc.relation.urihttp://link.springer.com/article/10.1007%2Fs10763-007-9072-0en_NZ
dc.subjectalternative conceptionsen_NZ
dc.subjectcurriculum reformen_NZ
dc.subjectstoichiometryen_NZ
dc.subjectstudents’ conceptionsen_NZ
dc.subjectThailanden_NZ
dc.titleThai grade 10 and 11 students’ understanding of stoichiometry and related conceptsen_NZ
dc.typeJournal Articleen_NZ
pubs.begin-page573en_NZ
pubs.elements-id34218
pubs.end-page600en_NZ
pubs.issue3en_NZ
pubs.volume6en_NZ
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