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Direct linkAyyildiz, Yildizay; Tarhan, Leman – Research in Science & Technological Education, 2018
Background: Problem-based learning (PBL) as a teaching strategy has recently become quite widespread in especially chemistry classes. Research has found that students, from elementary through college, have many alternative conceptions regarding "enthalpy changes in systems." Although there are several studies focused on identifying…
Descriptors: Problem Based Learning, Chemistry, Science Instruction, Pretests Posttests
Ayyildiz, Yildizay; Tarhan, Leman – Chemistry Education Research and Practice, 2013
This study aims at investigating the effects of case studies developed by the researchers on Science Teaching students' understanding of "gases, liquids and solids," and their attitudes towards chemistry lessons. The study was conducted on 52 freshmen from the Department of Science Teaching at a university in Turkey. Pre-test and…
Descriptors: Case Studies, Chemistry, Science Instruction, College Science
