A study investigated the need and appropriate design for an inservice training program for teachers in a multicultural educational program in the Philippines called "Preparing Refugees for Elementary Programs," or PREP. The PREP program provides classroom instruction to Indonesian refugee children 6.5 to 11 years of age and is administered at the Refugee Processing Center in the province of Bataan. Program objectives included flexible and systematic procedures for identifying and meeting evolving staff training needs, experiential learning and whole language instruction, and development of problem-solving skills. The report outlines the program and reviews relevant literature, then discusses the group-oriented Filipino culture and its implications for such a program, especially for the whole language approach to teaching. A description of the adult learner follows, focusing on adult development within different cultural contexts and implications for teacher training. Methodology used for designing the teacher training program is then described, including formulation and field testing. Results of field testing are reported in some detail, including tallies of participant responses to program components and emphases and recommendations for improved training design in 1990 and 1991. The trainers' manual for the proposed program forms a larger portion of the report, and a final section provides an overall summary of the project and conclusions. An article on evaluating teachers using the whole language approach, the 1987-89 pilot program schedule, and a bibliography and list of references are appended. (MSE)