This study investigated the effect of children's first formal school years on mathematical skill profiles, measured by a variety of arithmetical skills and Spontaneous Focusing On Numerosity (SFON) tasks. By using person-centered approach the aim was to investigate whether the amount of formal schooling is associated with mathematical skills in…

Early childhood education and school readiness is essential to preparing children to succeed in an increasingly competitive global economy. Compared to other countries, however, the United States lags far behind on preschool, trailing a number of other countries in enrollment, investment, and quality. In February 2013, however, President Barack…