The purpose of this quasi-experimental study was to examine the influence of a book distribution program targeted at enhancing children's exposure to information books. The research examined whether a flood of information books in early childhood settings, placing libraries in a central role, could affect growth in language, content-related…

Previous studies have often compared and contrasted differences among media presentations, including traditional storybooks and videos and their potential for incidental word learning among preschoolers. Studies have shown that children learn words from a variety of media, and that repetition is an important source for incidental learning. Yet, to…

Classic studies of educational media have demonstrated that children can engage in quick, incidental word learning on the basis of a single exposure of a program. Since most words are learned from context, a lingering question has been whether the kind of contextual support affects word learning. Using a within-subjects design this study examined…

Classic studies of educational media have demonstrated that children can engage in quick, incidental word learning on the basis of a single exposure of a program. Since most words are learned from context, a lingering question has been whether the degree of contextual support affects word learning. Using a within-subjects design this study…

The purpose of this design experiment was to research, test, and iteratively derive principles of word learning and word organization that could help to theoretically advance our understanding of vocabulary development for low-income preschoolers. Six Head Start teachers in morning and afternoon programs and their children (N = 89) were selected…

This study examines the impact of 2 forms of professional development on prekindergarten teachers' early language and literacy practice: coursework and coaching. Participating teachers (N = 148) from 6 urban cities were randomly assigned to Group 1 (coursework), Group 2 (on-site coaching), or Group 3 (control group). Pre- and postassessments…

This meta-analysis examines the effects of vocabulary interventions on pre-K and kindergarten children's oral language development. The authors quantitatively reviewed 67 studies and 216 effect sizes to better understand the impact of training on word learning. Results indicated an overall effect size of 0.88, demonstrating, on average, a gain of…

This study examines the impact of professional development on teacher knowledge and quality early language and literacy practices in center- and home-based care settings. Participants from 291 sites (177 centers; 114 home-based) in four cities were randomly selected to: Group 1, 3-credit course in early language and literacy; Group 2, course plus…

Recognizing the importance of starting early, the purpose of our article is to examine if and how vocabulary is taught in commercially prepared early literacy curriculum for pre-K. Ten curriculum programs are reviewed to determine the prevalence of vocabulary instruction and the pedagogical practices used to support the learning of words and their…

Language and vocabulary represent the very foundation of learning to read and write. Children who do not develop strong oral language skills and vocabulary in these early years will find it difficult to keep pace with their peers. Children use the natural medium of language for thinking. Those who acquire a substantial vocabulary are often able to…

Responds to criticisms raised in another article in this issue concerning a study of incidental word learning among second-language learners viewing captioned television. Suggests that the criticisms fail to "see the forest for the trees." Responds to specific methodological criticisms. (RS)

Analyzes whether comprehensible input via captioned television influences acquisition of science vocabulary and concepts using 129 bilingual seventh and eighth graders. Finds that comprehensible input is a key ingredient in language acquisition and reading development. (MG)

Reports on functions of preschoolers' literacy-based verbal exchanges in a print-enriched play environment. Content of four and five year olds' play behavior was systematically analyzed. Results suggest that children's collaborative engagement in literacy through play may have an important influence on their developing understanding of written…

Notes that early childhood teachers need to encourage language and literacy development in a culturally responsive way, by acknowledging students' home culture, encouraging collaboration between students of different backgrounds, and setting the same standards of achievement for all students. Provides examples of culturally responsive learning…