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ERIC Number: EJ1105562
Record Type: Journal
Publication Date: 2011
Pages: 10
Abstractor: As Provided
ISSN: EISSN-2156-1400
The Frame Game
Edwards, Michael Todd; Cox, Dana C.
Journal of Mathematics Education at Teachers College, v2 n2 p18-27 Fall-Win 2011
In this article, the authors explore framing, a non-multiplicative technique commonly employed by students as they construct similar shapes. When students frame, they add (or subtract) a "border" of fixed width about a geometric object. Although the approach does not yield similar shapes in general, the mathematical underpinnings of framing are noteworthy. Using Interactive Geometry Software (IGS), teachers can explore mathematics behind the framing technique in greater depth while addressing student misconceptions and over-generalizations associated with the approach in classroom settings.
Program in Mathematics and Education, Teachers College, Columbia University. 525 West 120th Street Box 210-M, New York, NY 10027. Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A