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ERIC Number: ED520863
Record Type: Non-Journal
Publication Date: 2010-Jul
Pages: 8
Abstractor: As Provided
Reference Count: 13
ISBN: N/A
ISSN: N/A
Percentages: The Effect of Problem Structure, Number Complexity and Calculation Format
Baratta, Wendy; Price, Beth; Stacey, Kaye; Steinle, Vicki; Gvozdenko, Eugene
Mathematics Education Research Group of Australasia, Paper presented at the Annual Meeting of the Mathematics Education Research Group of Australasia (33rd, Freemantle, Western Australia, Jul 3-7, 2010)
This study reports how the difficulty of simple worded percentage problems is affected by the problem structure and the complexity of the numbers involved. We also investigate which methods students know. Results from 677 Year 8 and 9 students are reported. Overall the results indicate that more attention needs to be given to this important topic. Simple unit fraction equivalents seem to be emphasised, at the expense of fundamental definition ("out of a hundred") and apparently easy percentages such as 30%. The draft National Curriculum gives better guidance on the variation amongst percentage problems. (Contains 1 table and 3 figures.) [For the complete proceedings, "Shaping the Future of Mathematics Education. Proceedings of the Annual Conference of the Mathematics Education Research Group of Australasia (33rd, Freemantle, Western Australia, Australia, July 3-7, 2010)," see ED520764.]
Mathematics Education Research Group of Australasia. GPO Box 2747, Adelaide SA 5001, Australia. Tel: +61-8-8363-0288; Fax: +61-8-8362-9288; e-mail: sales@merga.net.au; Web site: http://www.merga.net.au/
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: Mathematics Education Research Group of Australasia
Identifiers - Location: Australia