Drew H. Bailey|Mary K. Hoard|Lara Nugent|David C. Geary
Competence with fractions predicts gains in mathematics achievement
University of Missouri|University of Missouri|University of Missouri|University of Missouri
competence fractions predicts later mathematics achievement codevelopmental pattern fractions knowledge mathematics achievement well understood assessed codevelopment examination crosslagged relation measure conceptual knowledge fractions mathematics achievement sixth seventh grades n 212 crosslagged effects indicated performance sixth grade fractions concepts measure predicted 1year gains mathematics achievement 14 p 01 controlling central executive component working memory intelligence sixth grade mathematics achievement predict gains fractions concepts measure 03 p 50 followup assessment demonstrated measures fluency computational fractions significantly predicted seventh grade mathematics achievement beyond influence fluency computational whole number arithmetic performance number fluency number line tasks central executive span intelligence results provide empirical support hypothesis competence fractions underlies part subsequent gains mathematics achievement