In recent years the field has seen an increasing realisation that the full complexity of language acquisition demands theories that (a) explain how children integrate information from multiple sources in the environment, (b) build linguistic representations at a number of different levels, and (c) learn how to combine these representations in order to communicate effectively. These new findings have stimulated new theoretical perspectives that are more centered on explaining learning as a complex dynamic interaction between the child and her environment. This book is the first attempt to bring some of these new perspectives together in one place. It is a collection of essays written by a group of researchers who all take an approach centered on child-environment interaction, and all of whom have been influenced by the work of Elena Lieven, to whom this collection is dedicated.

The subject of this two part work is the acquisition of language structure in which the development of syntax and morphology is examined by investigations on children without language problems and on children with developmental dysphasia. The author uses a comparative acquisition study to provide insights into the structure and development of the language acquisition device, which cannot be obtained by isolated analysis of only one type of learning. The theoretical framework used for the investigations is the learnability theory, in which acquisition models are proposed which are heavily influenced by theoretical linguistics. Part I shows how child grammar acquisition can be explained in the framework of learnability theory and Part II deals with deficiencies in normal grammar acquisition using the learnability theory.

Taking an accessible and cross-linguistic approach, Understanding Child Language Acquisition introduces readers to the most important research on child language acquisition over the last fifty years, as well as to some of the most influential theories in the field. Rather than just describing what children can do at different ages Rowland explains why these research findings are important and what they tell us about how children acquire language. Key features include: Cross-linguistic analysis of how language acquisition differs between languages A chapter on how multilingual children acquire several languages at once Exercises to test comprehension Chapters organised around key questions that summarise the critical issues posed by researchers in the field, with summaries at the end Further reading suggestions to broaden understanding of the subject With its particular focus on outlining key similarities and differences across languages and what this cross-linguistic variation means for our ideas about language acquisition, Understanding Child Language Acquisition forms a comprehensive introduction to the subject for students of linguistics, psychology and speech and language therapy. Students and instructors will benefit from the comprehensive companion website that includes a students’ section featuring interactive comprehension exercises, extension activities, chapter recaps and answers to the exercises within the book. Material for instructors includes sample essay questions, answers to the extension activities for students and a Powerpoint including all the figures from the book. www.routledge.com/cw/rowland