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Shubbar, K. E. – Research in Science and Technological Education, 1990
The purpose of this investigation was to evaluate the effectiveness of six instructional programs with the aim of alleviating the problems encountered by students in visualizing rotation in molecular diagrams. Models were filmed rotating around the three different axes with different speeds with and without shadows. (KR)
Descriptors: Audiovisual Instruction, Chemical Bonding, Chemistry, Developing Nations