Computational Estimation Performance on Whole-Number Multiplication by Third- and Fifth-Grade Chinese Students

Autor/in	Liu, Fuchang
Titel	Computational Estimation Performance on Whole-Number Multiplication by Third- and Fifth-Grade Chinese Students
Quelle	In: School Science and Mathematics, 109 (2009) 6, S.325-337 (13 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0036-6803
DOI	10.1111/j.1949-8594.2009.tb18102.x
Schlagwörter	Mental Computation; Grade 5; Grade 3; Arithmetic; Multiplication; Number Concepts; Numeracy; Mathematical Formulas; Mathematics Tests; Comparative Testing; Intermode Differences; Foreign Countries; Performance Based Assessment; Learning Strategies; China + Suchen Sie Ihr Suchwort? Kopfrechnen; School year 05; 5. Schuljahr; Schuljahr 05; School year 03; 3. Schuljahr; Schuljahr 03; Addition; Arithmetik; Arithmetikunterricht; Rechnen; Multiplikation; Number concept; Zahlbegriff; Rechenkompetenz; Mathematische Formel; Ausland; Leistungsermittlung; Learning methode; Learning techniques; Lernmethode; Lernstrategie
Abstract	Four hundred and three 3rd- and 5th-grade Chinese students took the Multiplication Estimation Test or participated in the interview on it, designed to assess their computational estimation performance on whole-number multiplication. Students perform better when tasks are presented visually than orally. Third graders tend to use rounding based while fifth graders tend to use written algorithm based strategies, but boys' and girls' performances do not differ. It is concluded that students often will not estimate simply at the request to estimate if an exact answer is within their mental computation capability, and a two-step process is suggested for helping students decide what route to take when given arithmetic problems. (Contains 5 tables.) (As Provided).
Anmerkungen	School Science and Mathematics Association. Oklahoma State University, 245 Willard, Stillwater, OK 74078. Tel: 405-744-8018; Fax: 405-744-6290; e-mail: office@ssma.org; Web site: http://ssmj.tamu.edu.
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10