Data collected during the 1989-90 school year reveal that middle schools in Guam exist in name only, with one notable exception. F. B. Leon Guerrero Middle School has implemented an interdisciplinary team model boasting many of the salient features of true middle schools. Leon Guerrero teachers rated the extent their school provided for students' unique social, emotional, academic, and physical needs significantly higher than teachers at other middle schools. Information collected on student self-esteem suggests that Leon Guerrero is doing a creditable job of addressing the social and emotional aspects of student life. Information from the locally constructed Basic SKill Mastery Test in Language Arts/Reading and Mathematics indicates the school is performing adequately in these basic skill areas at the sixth-grade level. Although teacher morale was higher at Guerrero Middle School, morale and satisfaction with worksite conditions at all other middle schools declined. Guerrero stresses participative decision making more than other middle schools. To improve Guam's middle schools, this report recommends that: (1) the director of education immediately convene a high level task force to review the evaluation study and develop action plans; (2) the Territorial Board of Education immediately conduct a detailed policy analysis aimed at incorporating middle school goals and objectives; and (3) policy makers fully support Leon Guerrero's interdisciplinary model. Appendices provide memoranda, sample teacher and student survey instruments, curriculum outlines, and other supportive materials. (20 references) (MLH)