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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
