The handbook is designed primarily as a preservice training guide for prospective immersion program teachers and secondarily as a resource for immersion program administrators and parents of prospective enrollees. It includes: (1) an overview of the immersion model, describing its historical context and key features and briefly reviewing research findings on variations of the model; (2) a discussion of instructional methodology, including strategies used in other second language programs that are relevant to immersion teaching; (3) examination of other important concerns in immersion program implementation, such as enrollment policies and articulation across grades and levels; (4) a summary of materials and assessment instruments used in well-established programs; (5) discussion of areas for continued examination and development; and (6) recommendations for further reading. (MSE)