This book contributes to emerging research on third language acquisition (TLA) and pinpoints the main factors characterising TLA as a different process and area of study from second language acquisition. Moving beyond the dichotomous conception of monolingualism and bilingualism, it proposes a holistic and interdisciplinary approach to studying…

The last two decades have seen a significant amount of interest in bilingual language learning and processing. A number of computational models have also been developed to account for bilingualism, with varying degrees of success. In this article, we first briefly introduce the significance of computational approaches to bilingual language…

Research suggests that bilinguals often have weaker vocabulary in their second language compared to that of monolinguals (e.g., Hoff, 2013). It is thus important to identify factors that may facilitate vocabulary learning for bilinguals. One suggested factor is the presence of orthography while learning new oral vocabulary. The current study aims…

Second language acquisition (SLA) research offers valuable insight on how languages are learned and how they coexist and influence each other. Sign language learners offer unique perspectives on SLA, allowing researchers to test theories that are otherwise constrained by access to only one modality. Current literature on sign language learning…

This study explores the perspectives of the two authors, who have very different language backgrounds, reflecting the subtleties of first and additional language development. We distinguish between a 'literacy-track' (i.e. starting from written language) and an oracy track (starting from spoken language). We draw on duoethnography for our dialogic…

This study investigates the influences of early and intense L2 exposure on children's L1 causative verb production, assessed by an experimental causative verb production task. Turkish expresses causality by morphological and lexical means, whereas English does so by periphrastic and lexical means. Learning L2 English might enhance L1 Turkish…

The acquisition of voice in Greek remains understudied, especially in heritage populations. Voice in Greek poses a challenging acquisition task for children due to its syncretism, marking various verb classes as well as passives. The present study explores the acquisition of anticausatives, reflexives, and passives in 6-to-8-year-old monolingual…

"Introducing Second Language Acquisition: Perspectives and Practices" provides a clear and comprehensive introduction to the main concepts, issues, and debates in second language acquisition studies. This introductory textbook is aimed specifically at students encountering the topic for the first time. Each chapter offers a modern layout…

This report examines the critical role of home visitors in supporting dual language development among Latino children, who represent a growing share of the U.S. population. Through surveys and interviews with home visitors, UnidosUS identified gaps in training and resources needed to effectively serve culturally and linguistically diverse…

Using a large sample of longitudinal assessment data from children in publicly funded infant/toddler care, preschool, and kindergarten (analytic N = 453,468), this study modeled language and literacy trajectories from early infancy through kindergarten for dual language learners (DLLs) from homes representing many different languages and their…

An experimental crossover research design was utilized to investigate the effects of multimedia-enhanced instruction on the vocabulary acquisition of dual language learners in the early childhood age range. Sixteen 3-year-olds stratified by classroom and randomly assigned to condition participated in an eight-week intervention that incorporated…

Human language and cognition do not develop independently of each other but are intricately intertwined in various ways. This contribution presents the interplay between linguistic and cognitive abilities of learners at the individual level and relates them to the level of external contextual factors in social and educational environments. In…

The Matthew effects suggest that children who struggle when learning to read are less likely to read for pleasure later in life compared to children who ease into reading quickly. One aspect of early literacy instruction that might hamper reading progress is learning to read simultaneously in two languages. Despite the long-lasting and widespread…

There is vast potential for digital screens to support early bilingualism. For the most part, however, young children require human mediation with what is generated by screens in order for language and pre-literacy learning to occur. What does that mediation look like when multimodal elements are designed to support children's language and culture…

Schools are required by the U.S. Constitution, federal and state legislation, and court rulings to ensure equity and excellent education for emergent bilingual students. This literature reviews those policies, related funding and the history of poor quality of instruction provided to these learners. It also describes the research on bilingual…