Development and Evaluation of the H NMR MoleculAR Application

Autor/inn/en	Wright, Lyniesha; Oliver-Hoyo, Maria
Titel	Development and Evaluation of the H NMR MoleculAR Application
Quelle	In: Journal of Chemical Education, 98 (2021) 2, S.478-488 (21 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Wright, Lyniesha) ORCID (Oliver-Hoyo, Maria)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Science Instruction; Computer Simulation; Molecular Structure; Problem Solving; Teaching Methods; Scientific Concepts; Student Attitudes; Distance Education; Telecommunications; Handheld Devices; Organic Chemistry; Undergraduate Students; Computer Assisted Instruction; Visualization + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Computergrafik; Computersimulation; Problemlösen; Teaching method; Lehrmethode; Unterrichtsmethode; Schülerverhalten; Distance study; Distance learning; Fernunterricht; Telekommunikationstechnik; Organische Chemie; Computer based training; Computerunterstützter Unterricht; Visualisation; Visualisierung
Abstract	An augmented reality (AR) application and an activity worksheet have been developed to support students in visualizing the concepts involved when solving [superscript 1]H NMR problems. This instructional resource was designed to encourage conceptual problem-solving and prevent memorization by eliminating the use of chemical shift tables. It uses the compare-predict-observe-explain (CPOE) cycle and contrasting cases to guide students to abstract principles about how proton equivalency, nuclear spin, electronegativity, and anisotropy impact the number, intensity, splitting, and shift of signals on a spectrum. The AR resource aids students in visualizing 3D structures, molecular orbitals, and electrostatic potential maps. Results from the user experience questionnaire revealed that students had a positive user experience and ranked the novelty of the application as its best feature. We also provide evidence using the Behavioral Observation of Students in Schools protocol that merits the use of this instructional resource in the laboratory setting on the basis of the minimal need for instructor's assistance that was observed. This paper describes how the application H NMR MoleculAR, now freely available in Android and iOS stores, was incorporated as an in-lab app for the [superscript 1]H NMR laboratory at our institution. It has also been administered remotely and has been proven to be a useful complement to organic chemistry instruction. (As Provided).
Anmerkungen	Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01