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Direct linkAdadan, Emine – Chemistry Education Research and Practice, 2014
This mixed method study mainly explored how the extent of pre-service chemistry teachers' understanding of the particle nature of matter (PNM) affects their understanding of solution chemistry in the context of multirepresentational (MR) instruction. The ultimate goal was to describe the levels of understanding of specific solution chemistry…
Descriptors: Chemistry, Preservice Teachers, Scientific Concepts, Comprehension
Adadan, Emine; Savasci, Funda – International Journal of Science Education, 2012
This study focused on the development of a two-tier multiple-choice diagnostic instrument, which was designed and then progressively modified, and implemented to assess students' understanding of solution chemistry concepts. The results of the study are derived from the responses of 756 Grade 11 students (age 16-17) from 14 different high schools…
Descriptors: Chemistry, Grade 11, Scientific Concepts, Comprehension
Adadan, Emine; Irving, Karen E.; Trundle, Kathy C. – International Journal of Science Education, 2009
This quasi-experimental study examined 42 high school introductory chemistry students' conceptual understandings of the particulate nature of matter (PNM) before and immediately after instruction. Two groups of students, who were taught by the same teacher, received one of two possible instructional interventions: Reform-Based Teaching (RBT) or…
Descriptors: Secondary School Science, Chemistry, High School Students, Comprehension
