Teaching dual language learners? You're not alone! Leveraging the power of teacher collaboration is the key to leading all your students to multilingual identity development and language, literacy, and academic success. This practical book adapts a widely used, evidence-based collaboration and co-teaching framework specifically for educators in dual language contexts. Features include: special consideration to social justice and promoting critical consciousness; viable options for schools, districts, and state education agencies to effectively support and expand dual language education; seven proven co-teaching models, newly applied to elementary and secondary dual language environments; and templates and tools for collaborative curriculum alignment and implementation of dual language instruction.