ERIC Number: EJ1486863
Record Type: Journal
Publication Date: 2025-Sep
Pages: 9
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
Available Date: 0000-00-00
Spectroscopic Unknown Puzzles from Real Data--A More Authentic Pedagogical Approach with Epistemological Implications
Journal of Chemical Education, v102 n9 p3901-3909 2025
We present example assessments featuring spectroscopic unknown puzzles, where the solution to the puzzle is the outcome of a known chemical reaction. These spectroscopic exercises engage students in a substantially more authentic manner than the conventional structure elucidation puzzles that are ubiquitous in organic chemistry instruction. Students use the same information available to practicing organic chemists, "i.e.," the chemicals added to the reaction vessel and information regarding the intended reaction outcome, to support their interpretation of GC-MS, IR, and NMR data. This centers the purpose of spectroscopy and spectrometry on understanding chemical phenomena, often chemical reactions, rather than on solving "inauthentic unknown puzzles" which are not connected to a chemical phenomenon. We anticipate that repeated use of spectroscopy and spectrometry in this manner will communicate to students why organic chemists highly value these techniques and how they are used to construct knowledge in organic chemistry.
Descriptors: Spectroscopy, Puzzles, Problem Solving, Science Education, Science Activities, Authentic Learning, Organic Chemistry
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
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Authoring Institution: N/A
Grant or Contract Numbers: 2225025
Author Affiliations: 1Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States

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