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ERIC Number: EJ915184
Record Type: Journal
Publication Date: 2011-Feb
Pages: 8
Abstractor: ERIC
Reference Count: 5
ISBN: N/A
ISSN: ISSN-1072-0839
Tell a Piecewise Story
Sinclair, Nathalie; Armstrong, Alayne
Mathematics Teaching in the Middle School, v16 n6 p346-353 Feb 2011
Piecewise linear functions and story graphs are concepts usually associated with algebra, but in the authors' classroom, they found success teaching this topic in a distinctly geometrical manner. The focus of the approach was less on learning geometric concepts and more on using spatial and kinetic reasoning. It not only supports the learning of (what is now called) algebra but also recasts algebraic concepts and ideas in geometric terms. The classroom activity the authors describe was influenced by the Connected Mathematics Project middle school textbook "Variables and Patterns," for which they designed technology-based support using The Geometer's Sketchpad[R]. This article discusses how students develop the ability to describe functions in a geometry context by focusing on slope and using dynamic software. (Contains 6 figures.)
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/
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Middle Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A