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ERIC Number: EJ883929
Record Type: Journal
Publication Date: 2010-Apr
Pages: 9
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-1382-3892
When Two Circles Determine a Triangle. Discovering and Proving a Geometrical Condition in a Computer Environment
Metaxas, Nikolaos; Karagiannidou, Andromachi
International Journal of Computers for Mathematical Learning, v15 n1 p63-71 Apr 2010
Visualization of mathematical relationships enables students to formulate conjectures as well as to search for mathematical arguments to support these conjectures. In this project students are asked to discover the sufficient and necessary condition so that two circles form the circumscribed and inscribed circle of a triangle and investigate how this condition effects the type of triangle in general and its perimeter in particular. Its open-ended form of the task is a departure from the usual phrasing of textbook's exercises "show that...".
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: Students; Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A