“…Furthermore, prior research with preschool-aged DLL children, some of
which is experimental, demonstrates that classroom use of both the home language
and English may lead to improvement in Spanish word reading skills and at least
equivalent English emergent literacy skills compared with Spanish-speaking DLL
children in all-English contexts (e.g., Barnett
et al, 2007; Burchinal et al,
2016; Durán, Roseth,
& Hoffman, 2010; Páez
et al, 2007). Research on Spanish language instruction with older
elementary-aged children suggests similar results for bilingual education
compared with English-only programs by fourth grade (e.g., August & Shanahan, 2006; Goldenberg, 2012; Slavin & Cheung, 2005; Slavin, Madden, Calderón, Chamberlain, & Hennessy,
2011).…”