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Res Dev Disabil. 2011 Sep-Oct;32(5):1837-51. doi: 10.1016/j.ridd.2011.03.012. Epub 2011 Apr 16.

Early place-value understanding as a precursor for later arithmetic performance--a longitudinal study on numerical development.

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Knowledge Media Research Center, Konrad-Adenauer-Str. 40, 72072 Tuebingen, Germany.


It is assumed that basic numerical competencies are important building blocks for more complex arithmetic skills. The current study aimed at evaluating this interrelation in a longitudinal approach. It was investigated whether first graders' performance in basic numerical tasks in general as well as specific processes involved (e.g., place-value understanding) reliably predicted performance in an addition task in third grade. The results indicated that early place-value understanding was a reliable predictor for specific aspects of arithmetic performance. Implications of the role of basic numerical competencies for the acquisition of complex arithmetic are discussed.

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