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Direct linkYaman, Fatma; Ayas, Alipasa – Chemistry Education Research and Practice, 2015
Although concept maps have been used as alternative assessment methods in education, there has been an ongoing debate on how to evaluate students' concept maps. This study discusses how to evaluate students' concept maps as an assessment tool before and after 15 computer-based Predict-Observe-Explain (CB-POE) tasks related to acid-base chemistry.…
Descriptors: Science Instruction, High School Students, Secondary School Science, Concept Mapping
Demircioglu, Hülya; Ayas, Alipasa; Demircioglu, Gökhan; Özmen, Haluk – Asia-Pacific Forum on Science Learning and Teaching, 2015
In this study, the effect of the context-based approach on pre-service primary school teachers' understanding of matter and its states and their attitude towards chemistry was investigated. Using a simple experimental design, the study was conducted with 35 pre-service primary school teachers who were exposed to context-based material with…
Descriptors: Preservice Teachers, Elementary Education, Scientific Concepts, Chemistry
Tatli, Zeynep; Ayas, Alipasa – Educational Technology & Society, 2013
It is well known that laboratory applications are of significant importance in chemistry education. However, laboratory applications have generally been neglected in recent educational environments for a variety of reasons. In order to address this gap, this study examined the effect of a virtual chemistry laboratory (VCL) on student achievement…
Descriptors: Science Laboratories, Chemistry, Computer Uses in Education, Science Achievement
Costu, 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
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; Ebenezer, Jazlin V. – Research in Science & Technological Education, 2009
The study aims to demonstrate evidence of (a) students' conceptual change on solution rates; (b) students' sub-microscopic explanations of dissolution; and (c) retention of the concepts of solution rates. The sample consists of 44 Grade 9 students (18 boys and 26 girls) drawn purposively from two different classes (22 each) in the city of Trabzon,…
Descriptors: Constructivism (Learning), Logical Thinking, Concept Formation, Foreign Countries
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
