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Peer reviewedMas, Carlos J. Furio; And Others – Journal of Chemical Education, 1987
Discusses the need to consider students' pre-existing conceptual schemes when teaching chemistry. Reports on a study done in Spain which indicates that the existence of adolescents preconceptions about gases is important to consider when teaching the principles of conservation of substance, mass, and weight. (TW)
Descriptors: Chemistry, Cognitive Processes, Concept Formation, Conservation (Concept)
