Dividing Fractions: What Is the Divisor's Role?

Autor/in	Coughlin, Heather A.
Titel	Dividing Fractions: What Is the Divisor's Role?
Quelle	In: Mathematics Teaching in the Middle School, 16 (2010) 5, S.280-287 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1072-0839
Schlagwörter	Misconceptions; Mathematics Instruction; Computation; Preservice Teacher Education; Arithmetic; Middle Schools; Secondary School Mathematics; Word Problems (Mathematics); Mathematical Concepts + Suchen Sie Ihr Suchwort? Missverständnis; Mathematics lessons; Mathematikunterricht; Lehramtsstudiengang; Lehrerausbildung; Addition; Arithmetik; Arithmetikunterricht; Rechnen; Middle school; Mittelschule; Mittelstufenschule; Textaufgabe
Abstract	Dividing by fractions is considered by many to be one of the most complicated procedures in elementary mathematics. The computations are not only complicated but also challenging to explain in the context of a word problem. In this article, the author discusses the role of the divisor in the concept of division by fractions. She examines three work samples and common misconceptions about the role of the divisor. The three samples were chosen because they represent the errors the author continually encounters in her prebaccalaureate preservice teachers' math class. She offers insights based on the measurement model of division approached by repeated subtraction to clarify the misconceptions. (Contains 7 figures.) (ERIC).
Anmerkungen	National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail: orders@nctm.org; Web site: http://www.nctm.org/publications/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10