Decades of research conclusively demonstrates that language immersion programs are highly effective and successful for diverse groups of learners. Tampa Bay International School is a partial immersion school, in which instructional time is divided equally between English and Spanish.  Mondays and Wednesdays are English days, in which instruction takes place solely in English. Tuesdays and Thursdays are Spanish days, in which instruction occurs only in Spanish. On Fridays we alternate, providing instruction in English one Friday, and in Spanish the next. In this manner, instruction is divided evenly between the two languages; speaking, listening, reading and writing skills are all developed simultaneously in both Spanish and English.