\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2016f.00828}
\itemau{Laski, Elida V.; Schiffman, Joanna; Shen, Chen; Vasilyeva, Marina}
\itemti{Kindergartners' base-10 knowledge predicts arithmetic accuracy concurrently and longitudinally.}
\itemso{Learn. Individ. Differ. 50, 234-239 (2016).}
\itemab
Summary: Children's early knowledge of the base-10 structure of multi-digit numbers has been hypothesized to play a critical role in subsequent learning of mathematics, in particular arithmetic operations. The present study investigated the relation between base-10/place value understanding and arithmetic accuracy in early elementary school. Children were assessed in kindergarten ($N=90$) and then a subgroup of participants was assessed again two years later in second grade ($N=21$). Mediation analyses indicated that, in kindergarten, base-10 knowledge had a direct effect on arithmetic accuracy as well as an indirect effect through the use of a decomposition strategy. Furthermore, kindergarten base-10 knowledge had a direct effect on arithmetic accuracy in second grade and an indirect effect through second grade place-value notation understanding. Implications for understanding early mathematical development are discussed.
\itemrv{~}
\itemcc{F21 F31 C31}
\itemut{base-10 knowledge; arithmetic; place-value concept; strategy; early childhood}
\itemli{doi:10.1016/j.lindif.2016.08.004}
\end