Can early childhood education (ECE) support the societal language development of children from linguistically diverse backgrounds? This study examined how existing variation in classroom interaction quality (CLASS Pre-K), classroom composition (percentages of children from low-income backgrounds and dual language learners [DLLs]), and duration of…

The current study investigates the impact of the teachers' societal dominant language use within a weak version of translanguaging in early heritage language education. We explored five preschool teachers' use of English, the dominant majority language, in Tamil heritage language classes in Singapore and examined its impact on 33 children's…

Research Findings: This study examined how teacher--child conversations unfold during shared book reading in Head Start classrooms as well as the relations between that talk and children's vocabulary learning. Book reading experiences in 27 Head Start classrooms were videotaped and coded for teacher talk, child responses, teacher follow-up…

Research Findings: Children learn most of their vocabulary incidentally, by hearing words used in their environment. This study explored which kinds of presentations of words, without any direct instruction, yielded greater depth of target word knowledge. Changes in 56 kindergartners' depth of knowledge for each of 23 novel target words (N =…

This exploratory multiple case study investigated how preschool-age, Spanish-English emergent bilingual (EB) children with diverse language profiles leverage their discursive resources to engage with peers and teachers in sociodramatic play (SDP) interactions. Data were collected over the course of one academic year, including weekly video…

Research Findings: This study of kindergarten monolingual and Dual Language Learners (DLLs) (N=263; mean age = 63.40 months) and their teachers (N=27) found significant mean differences in the observed quality of language interactions in classrooms with differing proportions of DLLs. Teachers instructing in classrooms with higher numbers of DLLs…

The present study examined the relations between teacher-child interactions, teachers' Spanish use, classroom linguistic composition, and the school readiness skills of low-income, Latinx, Spanish-speaking dual language learners (DLLs), controlling for home and teacher background characteristics, with a national probability sample of Head Start…

The standard scoring of the CLASS PreK produces three domain scores that are widely used in research, practice and policy. Despite these domains being based on developmental theory and research, limited empirical evidence exists for the three-domain structure as operationalized in the CLASS PreK. Using the 2009 and 2014 Head Start Family and Child…

This mixed methods study extends findings from a prior study exploring use of increasingly-complex, expository text situated within a five-week interdisciplinary intervention in which first-grade children attending a Sheltered-English (SEI) immersion classroom advanced their conceptual knowledge and academic language approximating levels near or…

Research Findings: This study examines lexical- and sentence-level dimensions of academic language to describe teachers' natural use of academic language and its association with vocabulary growth in 489 at-risk 4-year-olds enrolled in Head Start preschool classrooms. Using transcripts derived from video recordings of book-reading sessions in 52…

Little analytical scrutiny has been devoted to teacher accommodation of academic language at the early childhood level, despite being a critical school-level factor to consider when addressing at-risk learners' academic needs. The present study investigates how fifteen Head Start teachers support three components of academic language during…

Using a nationally representative sample of dual language learners (DLLs) attending Head Start, this study investigated how the language used for instruction and the proportion of DLLs in the class was associated with English and Spanish receptive vocabulary development between the fall and spring (n = 531). Based on teacher report of the language…

In this study, we examined the longitudinal relations between frequency and features of reading experiences within the preschool classroom to children's language and literacy outcomes in kindergarten and 1st grade. "Frequency" refers to the number of shared reading sessions conducted each week as measured by teachers' written reading…

The purpose of this study was to support teachers' child-directed language and student outcomes by enhancing the educative features of an intervention targeted to vocabulary, conceptual development and comprehension. Using a set of design heuristics (Davis & Krajcik, 2005), our goal was to support teachers' professional development within the…