Project GLAD (Guided Language Acquisition Design), a model of inservice teacher training in which teachers learn to modify instruction to promote acquisition of English as a Second Language, is outlined. The model uses the whole language approach to language learning. Its development was guided by research in whole language theory; integration of content and language within the curriculum; the role of the first language in learning; the value of culture; second language acquisition; neurological organization and brain hemisphere functions; effective reading and writing instruction; classroom environment; heterogeneous instructional grouping; and language functional environment. The teacher training is accomplished with a team of two instructors who model peer coaching. Instruction includes several days of training in theory and research, observation of demonstration lessons each day for one week, a week of classroom practice, feedback and coaching, and the opportunity for further instruction to become a trainer. Appended materials include newsletter and newspaper articles about the program, a project description and supporting documents, and idea outlines for instructional units on endangered animals and early California history. (MSE)