What Happens When CAS Procedures Are Objectified?--The Case of "Solve" and "Desolve"

Autor/inn/en	Jankvist, Uffe Thomas; Misfeldt, Morten; Aguilar, Mario Sánchez
Titel	What Happens When CAS Procedures Are Objectified?--The Case of "Solve" and "Desolve"
Quelle	In: Educational Studies in Mathematics, 101 (2019) 1, S.67-81 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Jankvist, Uffe Thomas)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0013-1954
DOI	10.1007/s10649-019-09888-5
Schlagwörter	Computer Uses in Education; Algebra; Problem Solving; Foreign Countries; Secondary School Mathematics; Mathematics Education; Concept Formation; Secondary School Students; Denmark + Suchen Sie Ihr Suchwort? Computernutzung; Problemlösen; Ausland; Mathematische Bildung; Concept learning; Begriffsbildung; Sekundarschüler; Dänemark
Abstract	Inspired by the entering of computer algebra systems (CAS) in the Danish upper secondary school mathematics program, this article addresses, from a theoretical stance, what may happen when traditional procedures are outsourced to CAS. Looking at the commands "solve" and "desolve," it is asked what happens when such CAS procedures are objectified in the students' minds, and what the nature might be of the resulting "objects." The theoretical analyses draw on a selection of classical mathematics education frameworks on conceptualization and are related to the research literature on technology in mathematics education. The article suggests the following characteristics as elements of negative effects: loss of distinctive features of concept formation, a consequential reclassification of mathematical objects, instability of CAS solutions as objects, and prevailing a posteriori reasoning on students' behalf when relying solely on CAS in their mathematical work. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01