Literaturnachweis - Detailanzeige
| Autor/inn/en | Wheeler, Alan E.; Kass, Heidi |
|---|---|
| Titel | Student Misconceptions in Chemical Equilibrium as Related to Cognitive Level and Achievement. |
| Quelle | (1974), (17 Seiten)
PDF als Volltext kostenfreie Datei |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Achievement; Chemical Equilibrium; Chemistry; Concept Formation; Educational Research; Grade 12; Secondary School Science |
| Abstract | Reported is an investigation to determine the nature and extent of student misconceptions in chemical equilibrium and to ascertain the degree to which certain misconceptions are related to chemistry achievement and to performance on specific tasks involving cognitive transformations characteristic of the concrete and formal operational stages of thought. The Misconception Identification Test (MIT), a 30-item multiple choice test, was developed to require the student to predict the effect of changing certain variables on the equilibrium conditions of selected chemical systems. Six major misconceptions were investigated: (1) mass vs. concentration, (2) rate vs. extent, (3) "constancy" of the equilibrium constant, (4) misuse of Le Chatelier's Principle, (5) constant concentration, and (6) competing equilibria. Ninety-nine grade-12 chemistry students in four classes (three teachers) participated in this study. Upon analysis of the data, the researchers concluded, among other findings, that students operating at the early or late concrete levels may benefit from a greater emphasis on a laboratory approach in which they can predict and then observe the effect of varying certain variables on a chemical system at equilibrium. (Authors/PEB) |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
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