Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Iowa State University

Chemistry Publications

Educational Methods

Articles 1 - 2 of 2

Full-Text Articles in Education

Eye Tracking Student Strategies For Solving Stoichiometry Problems Involving Particulate Nature Of Matter Diagrams, John Y. Baluyut, Thomas A. Holme Feb 2019

Eye Tracking Student Strategies For Solving Stoichiometry Problems Involving Particulate Nature Of Matter Diagrams, John Y. Baluyut, Thomas A. Holme

Chemistry Publications

This study compared how students obtained and used information from particulate nature of matter (PNOM) diagrams as well as balanced chemical equations when asked questions about stoichiometry concepts such as limiting and excess reagents, and yield. The comparisons were made in terms of visual behaviors by examining eye fixations while students responded to a 30-item online instrument. Statistically significant differences were found between visual behaviors of high- and low-performers on seven items, mostly those that dealt with correctly identifying the limiting reagent for each diagram. High-performing students were found to have spent more time examining PNOM diagrams and transitioned more ...


Safety In The Chemistry Curriculum At Iowa State University, Gordon J. Miller, Paul Richmond Jan 1998

Safety In The Chemistry Curriculum At Iowa State University, Gordon J. Miller, Paul Richmond

Chemistry Publications

At Iowa State University we have developed and are continuing to design programs into our undergraduate and graduate curricula that will establish a sound practice of proper chemical hygiene in the laboratory. Our efforts include: (1) for all entering graduate students, an introductory graduate course to teach proper laboratory procedures and handling of chemicals; (2) for advanced graduate students, a chemistry safety committee which interacts with our university's EH&S department to learn about EPA and OSHA requirements so as to maintain a high level of safety awareness throughout our research labs; and (3) for our undergraduate introductory chemistry students, supplementary readings and prelaboratory quizzes designed with chemical safety in mind, e.g., waste handling procedures, first aid, MSDS's, and the ...