Updated after 10 years of research and practice, the second edition of this bestselling resource includes an overview on the importance of oral language development, information on preparing the shadowing experience, the complete shadowing protocol, a guide for analyzing the shadowing experience and key oral language development strategies. The new edition also adds improved data collection for oral language expression, as well as highlights updated research and classroom practice concerning new policies and programs implemented across the country. A comprehensive guide to ELL shadowing is presented alongside: detailed case studies showing real-world examples; guidelines for analyzing and reflecting on the shadowing experience; guidelines for shadowing in a virtual environment; guidelines for shadowing in a multilingual environment; an assets-based orientation to student learning; and the use of achievement data to improve ELL education.