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…

Child-directed speech (CDS), which can help children learn new words, has been rigorously studied among infants and parents in home settings. Yet, far less is known about the CDS that teachers use in classrooms with toddlers and children's responses, an important question because many toddlers, particularly in high-need communities, attend…

This exploratory study examined the Morning Message, an activity that is widely practiced in many early childhood curricula but has almost no empirical data to support its effectiveness. In total, 7 Head Start teachers and the 59 four-year-old children in their classrooms participated in this study. Using a qualitative observation system, we…

Evidence shows that the Matthew effect is a persistent problem among early education interventions. The current study examined the degree to which the "ExCELL" ("Ex"ceptional "C"oaching for "E"arly "L"anguage and "L"iteracy) language and literacy professional development intervention for…

This study examined the ways in which the language that Head Start teachers used during book reading, as well as the extent to which they made explicit connections between book reading and other instructional activities, were linked to preschoolers' vocabulary development. Participants included 10 Head Start teachers and 153 children in their…

Language and, specifically, vocabulary development plays a critical role in early literacy development. This article describes Exceptional Coaching for Early Language and Literacy (ExCELL), which is a research-based, effective preschool program that focuses on developing Head Start enrollees' language and preliteracy skills. The ExCELL program…

This study unpacks the effective Exceptional Coaching for Early Language and Literacy ("ExCELL") professional development intervention to understand how the language and literacy coaching that teachers receive is linked to changes in their knowledge and then how this knowledge is related to classroom practice. In total, 17 lead teachers…

A language and literacy intervention was implemented in 10 Head Start classrooms. Teachers were trained in specific book reading and conversation strategies. The focus of the intervention was to train teachers how to increase opportunities for language and vocabulary development in young children. At the end of the year, children in the…