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Bivall, Petter; Ainsworth, Shaaron; Tibell, Lena A. E. – Science Education, 2011
This study explored whether adding a haptic interface (that provides users with somatosensory information about virtual objects by force and tactile feedback) to a three-dimensional (3D) chemical model enhanced students' understanding of complex molecular interactions. Two modes of the model were compared in a between-groups pre- and posttest…
Descriptors: Molecular Structure, Science Instruction, Tactual Perception, Educational Technology
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Claesgens, Jennifer; Scalise, Kathleen; Wilson, Mark; Stacy, Angelica – Science Education, 2009
Preliminary pilot studies and a field study show how a generalizable conceptual framework calibrated with item response modeling can be used to describe the development of student conceptual understanding in chemistry. ChemQuery is an assessment system that uses a framework of the key ideas in the discipline, called the Perspectives of Chemists,…
Descriptors: Scoring Rubrics, Chemistry, Item Response Theory, Comprehension
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Snir, Joseph; Smith, Carol L.; Raz, Gila – Science Education, 2003
Helping students understand the general nature of scientific models is increasingly regarded as an important goal of the middle and high school science curriculum (e.g., J. K. Gilbert & C. Boutler, 1998. "International Handbook of Science Education"; Kluwer, London; A. G. Harrison & D. F. Treagust, 2000. "Science Education," 352-381). In addition,…
Descriptors: Computer Software, Science Curriculum, Science Education, Chemistry