Project BEST (Building Educational and Social Skills Through Training) seeks to develop social skills in students. As a first step, high-risk kindergarten students attending school in Spencer County, Kentucky, were identified through systematic screening and assessment procedures and a curriculum was developed to meet the individual needs of the identified children. The greatest need of the children was a need for experiences promoting language development. This manual presents the language acquisition curriculum developed by personnel in the local school district. Teacher materials included in the curriculum provide a definition of language development, list basic causes for language deficiencies and delays, and present language development guidelines and checklists, as well as teacher guidelines, objectives, and general lesson plan guides for the school's speech and language program. Instruction-related problem areas from the point of view of both the speech therapist and the classroom teacher are noted. The bulk of the material in the manual is contained in appendices. Appendices 1 through 4 provide, respectively, additional information for teacher orientation, additional materials or information for teachers, materials and information for parents, sample packets for parents, a bibliography and assessment instruments. (RH)