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ERIC Number: EJ839979
Record Type: Journal
Publication Date: 2008-Nov
Pages: 23
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1570-1824
EISSN: N/A
Local and Global Thinking in Statistical Inference
Pratt, Dave; Johnston-Wilder, Peter; Ainley, Janet; Mason, John
Statistics Education Research Journal, v7 n2 p107-129 Nov 2008
In this reflective paper, we explore students' local and global thinking about informal statistical inference through our observations of 10- to 11-year-olds, challenged to infer the unknown configuration of a virtual die, but able to use the die to generate as much data as they felt necessary. We report how they tended to focus on local changes in the frequency or relative frequency as the sample size grew larger. They generally failed to recognise that larger samples provided stability in the aggregated proportions, not apparent when the data were viewed from a local perspective. We draw on Mason's theory of the Structure of Attention to illuminate our observations, and attempt to reconcile differing notions of local and global thinking. (Contains 10 figures.)
International Association for Statistics Education and the International Statistical Institute. PO Box 24070, 2490 AB The Hague, The Netherlands. Tel: +31-70-3375737; Fax: +31-70-3860025; e-mail: isi@cbs.nl; Web site: http://www.stat.auckland.ac.nz/~iase/serj
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A