This training manual, the first volume in a four-volume series of curriculum guides for use in training Peace Corps agricultural development workers, is an orientation for trainers. The first chapter covers the philosophy and approach of the agricultural development training series as well as preparation for training and staff development. Addressed in the chapter on training design are ideas on design; sample integrated week, day, and session plans; procedures for building a training schedule; model training designs; and adaptation of designs to various needs. Appendixes to the manual include a glossary, pretraining research information and research task lists, guidelines for setting up the administrative component of a training program, site selection criteria, team building activities, a session plan format, sample assessment criteria, and sample training evaluation instruments. (MN)