1985
DOI: 10.1111/j.2044-835x.1985.tb00951.x
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Mathematics in the streets and in schools

Abstract: An analysis of everyday use of mathematics by working youngsters in commercial transactions in Recife, Brazil, revealed computational strategies different from those taught in schools. Performance on mathematical problems embedded in real‐life contexts was superior to that on school‐type word problems and context‐free computational problems involving the same numbers and operations. Implications for education are examined.

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Cited by 764 publications
(308 citation statements)
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“…That is, quantities were operated on iteratively until the desired result was reached. For example, here is a bookie's calculation of the pricu of a two part bet: Similar partitioning and grouping procedures have been reported by Carraher (1990) for co-,struction site workers and by Carraher, Carraher and Schliemann (1985) for street vendors.…”
Section: Rotoquantities To Operatorsmentioning
confidence: 52%
“…That is, quantities were operated on iteratively until the desired result was reached. For example, here is a bookie's calculation of the pricu of a two part bet: Similar partitioning and grouping procedures have been reported by Carraher (1990) for co-,struction site workers and by Carraher, Carraher and Schliemann (1985) for street vendors.…”
Section: Rotoquantities To Operatorsmentioning
confidence: 52%
“…and seasonal fruits. For more details about these informal commercial activities see Carraher et al (1985) and Saxe (1991). The study conducted by Saxe also describes the four-phase cyclical structure of this practice.…”
Section: Resultsmentioning
confidence: 99%
“…[3,48]). For example, children working as street vendors in Brazil, who can ably calculate using money when selling goods on the local street, are unable to repeat the same arithmetic operations on abstract numbers when asked in a laboratory environment [7].…”
Section: The Myth Of Rational Decision Making At the Microlevelmentioning
confidence: 99%