With funds from the U.S. Department of Education, via a subcontract from the University of Houston, CAL supported the development, implementation, and evaluation of research-based models for two major approaches to the education of English language learners—structured English immersion and transitional bilingual education—to determine the impact of the different program models on the performance of Spanish-speaking English language learners in Grades K–3. The work at CAL was part of a broader effort involving the University of Houston, the University of Texas at Austin, Harvard University, and the University of Miami.

Visit the Project SAILL website to learn more about this initi