Teacher preparation and professional development endeavors are key drivers of successful immersion/bilingual (I/B) and content-based language education (CBLE) programs across a variety of models. However, research in this critical area is scant and has not to date received the academic attention it deserves. Aimed at a broad audience, this timely volume is essential reading for anyone interested in knowing what research has to say about teacher development in the I/B and CBLE field. Its primary aim is to inform teacher education practice and stimulate additional research in the field by...