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Yeo, Jennifer; Tan, Seng Chee – International Journal of Science Education, 2010
Researchers are skeptical about the role of authoritative sources of information in a constructivist learning environment for fear of usurping students' critical thinking. Taking a social semiotics perspective in this study, authoritative sources are regarded as inscriptions of cultural artifacts, and science learning involves meaning-making of…
Descriptors: Constructivism (Learning), Scientific Principles, Problem Based Learning, Educational Environment
Ravanis, Konstantinos; Pantidos, Panagiotis; Vitoratos, Evangelos – Acta Didactica Napocensia, 2009
Children's mental representations about physical concepts and phenomena play a vital role in the learning process. This is confirmed by the data derived from relevant researches which demonstrate that the students formulate incompatible ideas compared with the scientific ones. In this research we investigate the representations of 14-15 years old…
Descriptors: Scientific Concepts, Learning Processes, Adolescents, Magnets

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