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Direct linkNakhleh, Mary B.; Samarapungavan, Ala; Saglam, Yilmaz – Journal of Research in Science Teaching, 2005
The objective of this study was to examine middle school students' developing understanding of the nature of matter and to compare middle school students' ideas to those of elementary schools students, as was done by Nakhleh and Samarapungavan ["J Res Sci Teach" 36(7):777-805, 1999]. Nine middle school students were interviewed using a scripted,…
Descriptors: Middle School Students, Secondary School Science, Elementary School Students, Interviews
Ardac, Dilek; Akaygun, Sevil – Journal of Research in Science Teaching, 2004
The present study makes use of the capabilities of computerized environments to enable simultaneous display of molecular representations that correspond to observations at the macroscopic level. This study questions the immediate and long-term effects of using a multimedia instructional unit that integrates the macroscopic, symbolic, and molecular…
Descriptors: Instructional Effectiveness, Grade 8, Chemistry, Multimedia Instruction
Rotbain, Yosi; Marbach-Ad, Gili; Stavy, Ruth – Journal of Research in Science Teaching, 2006
Our main goal in this study was to explore whether the use of models in molecular genetics instruction in high school can contribute to students' understanding of concepts and processes in genetics. Three comparable groups of 11th and 12th graders participated: The control group (116 students) was taught in the traditional lecture format, while…
Descriptors: Illustrations, Grade 12, Genetics, Science Achievement
