Project MASTER completed its 3-year funding cycle in 1987-88. The project aimed at providing enhanced science instruction to 575 Spanish-speaking limited-English-proficient students in 5 elementary schools. Project MASTER offered classes in English as a Second Language (ESL), mathematics, science, and computer skills with a hands-on, integrated instructional approach. The project also developed curriculum materials stressing skills, attitudes, and knowledge about science topics within the context of bilingual education, provided activities to integrate program and mainstream students, offered staff development workshops and conferences in science and bilingual education, and made efforts to involve parents in project activities. The program achieved its proposed objectives in ESL and staff development. It was not possible to assess whether Project MASTER achieved its objectives in science, mathematics, or parent involvement due to lack of data. Program strengths include the interdisciplinary and hands-on approach to science education, emphasis on early intervention for young students, and coordination of the activities of project and school personnel. Recommendations for improvement include provision of an educational assistant and facilities such as a resource room at each school site. (MSE)