Changes in Students' Mental Models from Computational Modeling of Gene Regulatory Networks

Autor/inn/en	Dauer, Joseph T.; Bergan-Roller, Heather E.; King, Gretchen P.; Kjose, McKenzie; Galt, Nicholas J.; Helikar, Tomáš
Titel	Changes in Students' Mental Models from Computational Modeling of Gene Regulatory Networks
Quelle	In: International Journal of STEM Education, 6 (2019), Artikel 38 (12 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Dauer, Joseph T.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	2196-7822
DOI	10.1186/s40594-019-0193-0
Schlagwörter	Computation; Schemata (Cognition); Genetics; Introductory Courses; Biology; Models; Concept Formation; Science Curriculum + Suchen Sie Ihr Suchwort? Cognition; Schema; Kognition; Humangenetik; Einführungskurs; Biologie; Analogiemodell; Concept learning; Begriffsbildung
Abstract	Background: Computational modeling is an increasingly common practice for disciplinary experts and therefore necessitates integration into science curricula. Computational models afford an opportunity for students to investigate the dynamics of biological systems, but there is significant gap in our knowledge of how these activities impact student knowledge of the structures, relationships, and dynamics of the system. We investigated how a computational modeling activity affected introductory biology students' mental models of a prokaryotic gene regulatory system ("lac" operon) by analyzing conceptual models created before and after the activity. Results: Students' pre-lesson conceptual models consisted of provided, system-general structures (e.g., activator, repressor) connected with predominantly incorrect relationships, representing an incomplete mental model of gene regulation. Students' post-lesson conceptual models included more context-specific structures (e.g., cAMP, "lac" repressor) and increased in total number of structures and relationships. Student conceptual models also included higher quality relationships among structures, indicating they learned about these context-specific structures through integration with their expanding mental model rather than in isolation. Conclusions: Student mental models meshed structures in a manner indicative of knowledge accretion while they were productively re-constructing their understanding of gene regulation. Conceptual models can inform instructors about how students are relating system structures and whether students are developing more sophisticated models of system-general and system-specific dynamics. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01