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 effectiveness of scaling up a vocabulary intervention, pre-K-first grade, using a structured adaptation of the World of Words that allowed teachers some autonomy over its implementation. The purpose was to determine whether such an adaptation could maintain fidelity and promote positive child outcomes. Classrooms (pre-K…

This article describes both the benefits and the challenges of using "teachable moments" as a primary strategy for oral vocabulary instruction. It argues that children will need more intentional oral vocabulary instruction, right from the very beginning, if they are to develop the academic and content-rich vocabulary necessary to be successful in…