New to this edition: *Separate chapters on implicit/explicit teaching and on a sociocultural/cognitive synthesis. *New sections on focus form strategies, World Englishes, research directions, corpus analysis, dialogical assessment, and the Acoma heritage language program. * The research has been updated throughout and reflects influential thinking for the 21st century. *Part 1: Theoretical Considerations Explores current theory and research, builds a case for emergent participatory teaching, and highlights literacy development, self-directed learning strategies, and current assessment issues and practices. *Part II: Exploring Methods and Activities Presents a practical reservoir from which teacher can draw as they develop their own methodologies and local practice. *Part III: Putting It All Together: Some Practical Issues Considers issues critical to program development, lesson design, textbook and computer program selection, video use, teacher research and professional development (including SOP). *Part IV: Programs in Action Describes K-Adult Programs (ESL, Foreign Language, Bilingual, and Tribal Heritage).*Part V: Case Studies: Teacher Narrations to Stimulate Professional Dialogue Presents case studies, ranging from kindergarten through university levels. ukryj opis