Project BECOME at Sarah J. Hale High School in Brooklyn, New York, was designed to provide instruction in English as a second language and in native language arts, as well as bilingual instruction in social studies, mathematics, and science, for Hispanic and Haitian high school students of limited English proficiency. In 1981-82, the second year of implementation, the project served 210 students. This report describes the project context, participant characteristics, objectives, organization, staffing, instructional activities, noninstructional activities (support services, curriculum development, parent involvement, staff development, and extracurricular activities), and evaluation. Evaluation results indicate that, in general, the program participants (1) met the criterion objective of one English syntax objective mastered per month of instruction; (2) made gains in English language skills, native language arts (Spanish, or French and Creole) mathematics, science, and social studies; (3) achieved high rates of success in business and vocational courses; and (4) had an attendance rate that was higher than the overall school attendance rate. Recommendations for improving the effectiveness of the program are presented. (MJL)