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Autor:
Moura, Ricardo; Wood, Guilherme; Pinheiro-Chagas, Pedro; Lonnemann, Jan; Krinzinger, Helga; Willmes, Klaus; Geraldi Haase, Vitor:

Titel:
Transcoding abilities in typical and atypical mathematics achievers
The role of working memory and procedural and lexical competencies

Quelle:
In: Journal of Experimental Child Psychology, 116 (2013) 3 , 707-727

URL des Volltextes:
http://www.sciencedirect.com/science/article/pii/S0022096513001434

Sprache:
Englisch

Dokumenttyp:
3a. Beiträge in begutachteten Zeitschriften; Aufsatz (keine besondere Kategorie)

Schlagwörter:
Arbeitsgedächtnis, Brasilien, Gesprochene Sprache, Grundschüler, Kognitive Entwicklung, Lernschwierigkeit, Mathematische Kompetenz, Schülerleistung, Zahlensystem


Abstract(original):
Transcoding between numerical systems is one of the most basic abilities acquired by children during their early school years. One important topic that requires further exploration is how mathematics proficiency can affect number transcoding. The aim of the current study was to investigate transcoding abilities (i.e., reading Arabic numerals and writing dictation) in Brazilian children with and without mathematics difficulties, focusing on different school grades. We observed that children with learning difficulties in mathematics demonstrated lower achievement in number transcoding in both early and middle elementary school. In early elementary school, difficulties were observed in both the basic numerical lexicon and the management of numerical syntax. In middle elementary school, difficulties appeared mainly in the transcoding of more complex numbers. An error analysis revealed that the children with mathematics difficulties struggled mainly with the acquisition of transcoding rules. Although we confirmed the previous evidence on the impact of working memory capacity on number transcoding, we found that it did not fully account for the observed group differences. The results are discussed in the context of a maturational lag in number transcoding ability in chil- dren with mathematics difficulties.


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last modified Nov 11, 2016