Modeling a cognitive tool for teaching the addition/subtraction of common fractions

Author: Kong Siu Cheung   Kwok Lam For  

Publisher: John Benjamins Publishing Company

E-ISSN: 1569-9803|1|2|327-352

ISSN: 1569-2167

Source: International Journal of Cognition & Technology, Vol.1, Iss.2, 2002-01, pp. : 327-352

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Abstract