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ERIC Number: EJ1033510
Record Type: Journal
Publication Date: 2014-Jun
Pages: 8
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0036-6811
Shape Is as Important as Size: Roundness and the Science of Measurement
Sangwin, Christopher J.
School Science Review, v95 n353 p115-122 Jun 2014
Science relies on standards for measurement. This article describes assessment of geometric shape, rather than size. The author considers the problem of establishing departure from roundness. In doing this he examines some curious geometric shapes, including non-circular shapes of constant width and shapes that rotate smoothly inside triangles. This has led to the recent reassessment of the standard testing procedures using V-blocks.
Association for Science Education. College Lane Hatfield, Herts, AL10 9AA, UK. Tel: +44-1-707-283000; Fax: +44-1-707-266532; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A