This book addresses critical topics for young ELLs such as demographics, development of bilingualism, cognitive and neurological benefits of bilingualism, and family relationships, as well as classroom, assessment, and teacher-preparation practices. Each chapter reviews the research and answers the following questions: What does the research clearly indicate for policy and practice?; How solid is this database and what findings are emerging?; What should the research agenda be for young ELLs? (Description from source)