The use of variables in a patterning activity: counting dots.

Autor/inn/en	Maj-Tatsis, Bozena; Tatsis, Konstantinos
Titel	The use of variables in a patterning activity: counting dots. Paralleltitel: Uporaba spremenljivk pri zaporedjih: stetje pik.
Quelle	In: CEPS journal, 8 (2018) 2, S. 55-70Infoseite zur Zeitschrift PDF als Volltext kostenfreie Datei (1); PDF als Volltext kostenfreie Datei (2) Link als defekt meldenVerfügbarkeit
Sprache	englisch
Dokumenttyp	online; Zeitschriftenaufsatz
ISSN	2232-2647
DOI	10.26529/cepsj.309
URN	urn:nbn:de:0111-pedocs-156685
Schlagwörter	Empirische Untersuchung; Unterrichtsbeobachtung; Bildungsstandards; Sekundarstufe I; Gymnasium; Schüler; Unterrichtseinheit; Videoaufzeichnung; Algebra; Gleichung (Math); Konstante; Mathematikunterricht; Variable; Polen
Abstract	The present paper examines a patterning activity that was organised within a teaching experiment in order to analyse the different uses of variables by secondary school students. The activity presented in the paper can be categorised as a pictorial/geometric linear pattern. We adopted a student-oriented perspective for our analysis, in order to grasp how students perceive their own generalising actions. The analysis of our data led us to two broad categories for variable use, according to whether the variable is viewed as a generalised number or not. Our results also show that students sometimes treat the variable as closely linked to a referred object, as a superfluous entity or as a constant. Finally, the notion of equivalence, which is an important step towards understanding variables, proved difficult for our students to grasp. (DIPF/Orig.).
Erfasst von	DIPF \| Leibniz-Institut für Bildungsforschung und Bildungsinformation, Frankfurt am Main
Update	2018/4