Literaturnachweis - Detailanzeige
| Autor/in | Flores, Alfinio |
|---|---|
| Titel | Subtraction of Positive and Negative Numbers: The Difference and Completion Approaches with Chips |
| Quelle | In: Mathematics Teaching in the Middle School, 14 (2008) 1, S.21-23 (3 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 1072-0839 |
| Schlagwörter | Subtraction; Mathematics Instruction; Number Concepts; Numeracy; Instructional Materials; Teaching Methods |
| Abstract | Diverse contexts such as "take away," comparison," and "completion" give rise to subtraction problems. The take-away interpretation of subtraction has been explored using two-colored chips to help students understand addition and subtraction of integers. This article illustrates how the difference and completion (or missing addend) interpretations of subtraction may be used with chips of two colors to help students develop a better understanding of the subtraction of negative and positive numbers. (Contains 9 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 |
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