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Wuttisela, Karntarat – Universal Journal of Educational Research, 2017
There are various types of instructional media related to Valence Shell Electron Pair Repulsion (VSEPR) but there is a lack of diversity of resources devoted to assessment. This research presents an assessment and comparison of students' understanding of VSEPR theory before and after tuition involving the use of the foam molecule model (FMM) and…
Descriptors: Science Instruction, Comprehension, Teaching Methods, Molecular Structure
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Dori, Yehudit Judy; Kaberman, Zvia – Instructional Science: An International Journal of the Learning Sciences, 2012
Much knowledge in chemistry exists at a molecular level, inaccessible to direct perception. Chemistry instruction should therefore include multiple visual representations, such as molecular models and symbols. This study describes the implementation and assessment of a learning unit designed for 12th grade chemistry honors students. The organic…
Descriptors: Organic Chemistry, Grade 12, Secondary School Science, Science Instruction
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Tsaparlis, Georgios; Papaphotis, Georgios – International Journal of Science Education, 2009
This study tested for deep understanding and critical thinking about basic quantum chemical concepts taught at 12th grade (age 17-18). Our aim was to achieve conceptual change in students. A quantitative study was conducted first (n = 125), and following this 23 selected students took part in semi-structured interviews either individually or in…
Descriptors: Constructivism (Learning), Rote Learning, Chemistry, Interviews
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Rotbain, Yosi; Stavy, Ruth; Marbach-Ad, Gili – Science Education Review, 2008
Our main goal in this study was to explore whether the use of models in high school molecular genetics instruction can contribute to students' understanding of concepts and processes in genetics. Three hundred and nineteen students from four comparable groups of 11th- and 12th-grade students participated. The control group (116 students) was…
Descriptors: Molecular Structure, Models, High School Students, Genetics
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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