ERIC Number: EJ1084251
Record Type: Journal
Publication Date: 2015-Dec
Abstractor: As Provided
Reference Count: 32
Are Noncovalent Interactions an Achilles Heel in Chemistry Education? A Comparison of Instructional Approaches
Williams, Leah C.; Underwood, Sonia M.; Klymkowsky, Michael W.; Cooper, Melanie M.
Journal of Chemical Education, v92 n12 p1979-1987 Dec 2015
Intermolecular forces (IMFs), or more broadly, noncovalent interactions either within or between molecules, are central to an understanding of a wide range of chemical and biological phenomena. In this study, we present a multiyear, multi-institutional, longitudinal comparison of how students enrolled in traditional general chemistry courses and those in a transformed general chemistry course (Chemistry, Life, the Universe and Everything, or CLUE) represent intermolecular forces in the context of small molecules. For multiple cohorts of students at two different universities, we found that students who participate in the CLUE curriculum were significantly more likely than those in a traditional curriculum to indicate (correctly) that intermolecular forces occur between, rather than within small molecules. In a longitudinal study, we followed the students from one cohort through the subsequent year of organic chemistry and found that the differences between the CLUE and traditional students persisted over the course of two years of chemistry instruction. In general, students who are enrolled in the transformed general chemistry curriculum have a more scientifically correct and more coherent understanding of IMFs. The finding that a majority of students leave general chemistry without a coherent understanding of the difference between covalent and noncovalent interactions must certainly impact their subsequent understanding of chemical and biological phenomena.
Descriptors: Chemistry, Science Instruction, Comparative Analysis, Longitudinal Studies, College Science, College Students, Molecular Structure, Organic Chemistry, Conventional Instruction, Instructional Effectiveness
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: email@example.com; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
IES Grant or Contract Numbers: DUE 0816692|1359818|DUE 1043707|1420005|DUE 1122472|1341987