The Tillamook program provides support to learning disabled students who experience difficulty in science, social studies, and other content areas in the regular class setting, as a result of mainstreaming efforts. The program model includes a professionally staffed resource room, a diagnostic-prescriptive team, and a library of multimedia resources. In the resource room, students work on specific objectives identified in the regular class setting. With the help of a resource teacher and materials specially adapted to emphasize important comcepts or written to accommodate the students' lower reading level, students receive needed assistance on concepts and skills that correspond to regular class coursework. More progress toward mastery of objectives results than would be expected if the students remained in the regular class. In an evaluation of the program spanning two years, reading achievement, verbal IQ, and self-esteem scores were consistently higher than those obtained with a control group. (JEH)