Redefining the Whole: Common Errors in Elementary Preservice Teachers' Self-Authored Word Problems for Fraction Subtraction

Autor/inn/en	Dixon, Juli K.; Andreasen, Janet B.; Avila, Cheryl L.; Bawatneh, Zyad; Deichert, Deana L.; Howse, Tashana D.; Turner, Mercedes Sotillo
Titel	Redefining the Whole: Common Errors in Elementary Preservice Teachers' Self-Authored Word Problems for Fraction Subtraction
Quelle	In: Investigations in Mathematics Learning, 7 (2014) 1, S.1-22 (22 Seiten)Infoseite zur Zeitschrift PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1947-7503
Schlagwörter	Elementary School Teachers; Preservice Teachers; Mathematical Concepts; Subtraction; Word Problems (Mathematics); Error Patterns; Mathematics Instruction; Concept Formation; Teacher Competencies; Graduate Students; Teaching Methods; Surveys; Pretests Posttests; Interviews + Suchen Sie Ihr Suchwort? Elementary school; Teacher; Teachers; Grundschule; Volksschule; Lehrer; Lehrerin; Lehrende; Subtraktion; Textaufgabe; Fehlertyp; Mathematics lessons; Mathematikunterricht; Concept learning; Begriffsbildung; Lehrkunst; Graduate Study; Student; Students; Aufbaustudium; Graduiertenstudium; Hauptstudium; Studentin; Teaching method; Lehrmethode; Unterrichtsmethode; Survey; Umfrage; Befragung; Interviewing; Interviewtechnik
Abstract	A goal of this study was to examine elementary preservice teachers' (PSTs) ability to contextualize and decontextualize fraction subtraction by asking them to write word problems to represent fraction subtraction expressions and to choose prewritten word problems to support given fraction subtraction expressions. Three themes emerged from the data: (a) subtraction problems were represented by an incorrect redefinition of the whole; (b) the type of unit chosen for the whole (e.g. cups, gallons, pounds vs. pizzas, pies) influenced the success of PSTs in representing Separate (Result Unknown) context problems for subtraction; and (c) the structure of the problem influenced PSTs' performance in writing subtraction word problems. (As Provided).
Anmerkungen	Research Council on Mathematics Learning. Web site: http://web.unlv.edu/RCML/journal.html
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01