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Students' Visualisation of Chemical Reactions--Insights into the Particle Model and the Atomic Model
Peer reviewed
Direct linkCheng, Maurice M. W. – Chemistry Education Research and Practice, 2018
This paper reports on an interview study of 18 Grade 10-12 students' model-based reasoning of a chemical reaction: the reaction of magnesium and oxygen at the submicro level. It has been proposed that chemical reactions can be conceptualised using two models: (i) the "particle model," in which a reaction is regarded as the simple…
Descriptors: Visualization, Chemistry, Science Instruction, Grade 10
Cheng, Maurice M. W.; Gilbert, John K. – International Journal of Science Education, 2014
This study investigated the mental representations of metallic bonding and the malleability of metals held by three male students aged 14-15 (Year 10) who were attending a Hong Kong school. One student was selected by their chemistry teacher as representing each of the highest, the medium, and the lowest level of attainment in chemistry in a…
Descriptors: Foreign Countries, Chemistry, Science Instruction, Secondary School Science
