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ERIC Number: EJ1121295
Record Type: Journal
Publication Date: 2016
Pages: 2
Abstractor: ERIC
ISSN: ISSN-0045-0685
Discovery: Triangle Inequality Revisited
de Mestre, Neville
Australian Mathematics Teacher, v72 n4 p14-15 2016
As outlined in the paper "The 20 Matchstick Triangle Challenge: An Activity to Foster Reasoning and Problem Solving" by Pat Graham and Helen Chick [EJ1093090], an incredibly useful set of information about the mathematical ability of your students will be revealed. You can look at the way your students try to solve the 20 matchsticks problem, their method of recording, their errors, and also the ramifications of the questions they ask. When your students have completed and discussed the 20 matchsticks problem, they should be ready to tackle the extensions provided in this paper.
Australian Association of Mathematics Teachers (AAMT). GPO Box 1729, Adelaide 5001, South Australia. Tel: +61-8-8363-0288; Fax: +61-8-8362-9288; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A