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Direct linkCostu, Bayram; Ayas, Alipasa; Niaz, Mansoor – Chemistry Education Research and Practice, 2010
We constructed the PDEODE (Predict-Discuss-Explain-Observe-Discuss-Explain) teaching strategy, a variant of the classical POE (Predict-Observe-Explain) activity, to promote conceptual change, and investigated its effectiveness on student understanding of the evaporation concept. The sample consisted of 52 first year students in a primary science…
Descriptors: Scientific Concepts, Concept Formation, College Freshmen, Chemistry
Costu, Bayram – EURASIA Journal of Mathematics, Science & Technology Education, 2008
The aim of this study was to investigate effectiveness of PDEODE (Predict-Discuss-Explain-Observe-Discuss-Explain) teaching strategy in helping students make sense of everyday situations. For this, condensation concept was chosen among many science concepts since it is related to many everyday-life events. Forty-eight eleventh graders students…
Descriptors: Foreign Countries, Scientific Concepts, Statistical Analysis, Grade 11
Calik, Muammer; Ayas, Alipasa; Coll, Richard K.; Unal, Suat; Costu, Bayram – Journal of Science Education and Technology, 2007
The research presented in this paper consisted of an investigation of the effectiveness of a four-step constructivist-based teaching activity on student understanding of how pressure and temperature influence the dissolution of a gas in a liquid. Some 44 Grade 9 students (18 boys and 26 girls) selected purposively from two school classes in the…
Descriptors: Constructivism (Learning), Student Attitudes, Teaching Models, Long Term Memory
