Frontmatter -- Contents -- Acknowledgements -- 1. Large-Scale Implementation of Dual Language Bilingual Education: A Key Moment in History -- 2. Guiding Theories: A Language Policy and Language Ecology Framework for Exploring DLBE Program Implementation -- 3. Teacher Perspectives on a District-Wide Dual Language Bilingual Education Language Policy Implementation: An Overview -- 4. Teacher Cases: Implementing DLBE with Fidelity or Language Separation in a Bilingual Context -- 5. Teacher Cases: Struggling to Implement DLBE or Multiple and Contradictory Policy Mandates -- 6. Teacher Cases: Adapting the Model or Valuing Linguistic Hybridity in DLBE -- 7. Discussion and Conclusions: Implementing DLBE to Serve Emerging Bilinguals -- References -- Index