This book explores how children acquire a second language in ways that differ from adult learners. It provides rich descriptions of the practices that can be used to teach young second language learners in different classroom contexts, including: English as an Additional Language or Dialect contexts; Language Other Than English contexts; Content and Language Integrated Learning contexts; Indigenous contexts; and Foreign Language contexts. Ideal for education students, the book surveys the particular needs of different learners, outlines the appropriateness of various methods used for teaching these classes, and suggests ways to assess learners.