During the 1979-1980 school year, the George Washington High School Bilingual Program served 310 ninth and tenth grade Spanish speaking students whose command of English was severely limited. The students received intensive instruction in English as a Second Language and content area instruction in Spanish. Additional program components included supportive services, staff development, parental involvement, curriculum development, and extracurricular activities. Evaluation of the program was accomplished through a comparison of outcomes to objectives. It was found that: (1) students mastered more objectives per month in English as a Second Language than were expected by program criteria; (2) students demonstrated statistically significant gains in Spanish reading achievement; (3) in the content areas, most groups of students achieved the criterion in mathematics, no groups achieved the criterion in science, only tenth grade groups reached the criterion in social studies, and all groups exceeded the expected criterion in language arts; (4) curriculum development objectives were met successfully; (5) inservice programs were held for teachers; and (6) increasing numbers of parents participated in school activities. (MK)