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Kala, Nesli; Yaman, Fatma; Ayas, Alipasa – International Journal of Science and Mathematics Education, 2013
The present study describes high school students' conceptions about acids and bases in terms of pH, pOH, microscopic level, strength, and concentration. A total of 27 high school students participated in the study. The data was collected using 3 POE tasks and a semi-structured interview. The data analysis demonstrated that most of the students had…
Descriptors: Chemistry, High School Students, Misconceptions, Semi Structured Interviews
Calik, Muammer; Ayas, Alipasa; Coll, Richard K. – International Journal of Science and Mathematics Education, 2009
This paper reports on an investigation on the use of an analogy activity and seeks to provide evidence of whether the activity enables students to change alternative conceptions towards views more in accord with scientific views for aspects of solution chemistry. We were also interested in how robust any change was and whether these changes in…
Descriptors: Test Items, Chemistry, Long Term Memory, Foreign Countries
Calik, Muammer; Ayas, Alipasa; Coll, Richard Kevin – International Journal of Science and Mathematics Education, 2007
This paper reports on the use of a constructivist-based pedagogy to enhance understanding of some features of solution chemistry. Pre-service science teacher trainees' prior knowledge about the dissolution of salts and sugar in water were elicited by the use of a simple diagnostic tool. The test revealed widespread alternative conceptions. These…
Descriptors: Constructivism (Learning), Prior Learning, Chemistry, Science Teachers