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Direct linkYan, Yaw Kai; Subramaniam, R. – Chemistry Education Research and Practice, 2018
This study focused on grade 12 students' understanding of reaction kinetics. A 4-tier diagnostic instrument was developed for this purpose and administered to 137 students in the main study. Findings showed that reaction kinetics is a difficult topic for these students, with a total of 25 alternative conceptions (ACs) being uncovered. Except for…
Descriptors: Diagnostic Tests, Kinetics, Grade 12, Chemistry
Yan, Yaw Kai; Subramaniam, R. – Chemistry Education Research and Practice, 2016
The study explored grade 12 students' understanding of reaction kinetics, a topic which has not been extensively explored in the chemistry education literature at this level. A 3-tier diagnostic instrument with 11 questions was developed--this format is of very recent origin and has been the subject of only a handful of studies. The findings…
Descriptors: Grade 12, Motion, Scientific Concepts, Scores
