Dyscalculie et modÃ¨les dÃ©veloppementaux du calcul - Resodys

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Dyscalculics may fail on some ofthese basic tests• CW– Degree in psychology;postgraduate qualifications;always very bad at maths atschool; finds shoppingextraordinarily difficult.Takes 4-5 times as long asnormals adding single digits;cannot subtract two digitnumbers. Always calculateson his fingers (which makesmultiplication hard).• Turner Syndrome(45X,m)– Very slow simplearithmetic, may failGCSE– High-functioning,good language andreading, A-level mathsin some cases– Compensated dyslexicButterworth, B. (1999). The mathematical brain. London: Macmillan.Charles vs controls: dot enumeration700060005000RT ms40003000Charles RandCont. RandCharles Can.Cont. Can2000100001 2 3 4 5 6 7 8 9 10Number of dots20
Dots: 45,Xm v. control30002500RT ms200015001000control groupXm Canonicalcontrol groupXm Random50001 2 3 4 5 6 7 8 9Number of dotsCharles vs controls: number comparison720700680340032006603000RT ms640620600580ControlsRT ms280026002400Charles56022005401 2 3 4 5 6 7 8Distance20001 2 3 4 5 6 7 8Distance21
Page 1: Dyscalculie et modèlesdéveloppeme
Page 4 and 5: Discrimination numérique chez le b
Page 6 and 7: Compétences proto-numériques ?Kar
Page 8 and 9: Les enfants habitués à deuxgroupe
Page 11 and 12: La phase d ’acquisition :aide de
Page 13 and 14: Le comptage pour calculer+≠ strat
Page 15: La numérosité se développe-t-ell
Page 23 and 24: Globalement les dyscalculiques et m
Page 25 and 26: Modèle de Séron et Deloche, 1987
Page 27: Modèle du triple code (Dehaene etC

Dyscalculie et modÃ¨les dÃ©veloppementaux du calcul - Resodys

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