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An Investigation into the Relationship between Students' Conceptions of the Particulate Nature of Matter and Their Understanding of Chemical Bonding
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Othman, Jazilah; Treagust, David F.; Chandrasegaran, A. L. – International Journal of Science Education, 2008
A thorough understanding of chemical bonding requires familiarity with the particulate nature of matter. In this study, a two-tier multiple-choice diagnostic instrument consisting of ten items (five items involving each of the two concepts) was developed to assess students' understanding of the particulate nature of matter and chemical bonding so…
Descriptors: Chemistry, Foreign Countries, Grade 9, Grade 10
The Taiwan National Science Concept Learning Study in an International Perspective
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Treagust, David F.; Chandrasegaran, A. L. – International Journal of Science Education, 2007
Over the past two decades, several two-tier multiple-choice diagnostic tests in science at a variety grade levels have been reported in the extant literature from several countries. This review summarises these studies, provides an overview of the methodology for their construction, presents two examples of typical items, and lists studies…
Descriptors: Foreign Countries, Sampling, Diagnostic Tests, Chemistry
Development and Use of Diagnostic Tests to Evaluate Students' Misconceptions in Science.
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Treagust, David F. – International Journal of Science Education, 1988
Describes 10 steps for developing a diagnostic test of students' misconceptions and the use of two tests in chemistry (covalent bonding and structure) and in biology (photosynthesis and respiration in plants). Discusses the results and some implications for teaching science. (YP)
Descriptors: Atomic Structure, Biology, Botany, Chemistry
The Role of Submicroscopic and Symbolic Representations in Chemical Explanations
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Treagust, David F.; Chittleborough, Gail; Mamiala, Thapelo L. – International Journal of Science Education, 2003
Chemistry is commonly portrayed at three different levels of representation--macroscopic, submicroscopic and symbolic--that combine to enrich the explanations of chemical concepts. In this article, we examine the use of submicroscopic and symbolic representations in chemical explanations and ascertain how they provide meaning. Of specific interest…
Descriptors: Grade 11, Chemistry, Science Instruction, Molecular Structure