SIOP Model Workshops

The number of students in the United States learning English as a second language has increased dramatically. Between 1991 and 2001, the population of students with limited English proficiency in K–12 schools grew 95%. Total enrollment grew only 12%. However, many students learning English have not been succeeding academically.

In response, schools, districts, and states have begun implementing the Sheltered Instruction Observation Protocol (SIOP) Model*, a research-based approach to planning and implementing sheltered content lessons that has proven effective with English language learners throughout the United States. It was developed through a national study by the Center for Research on Education, Diversity & Excellence (CREDE) and is explained in the book Making Content Comprehensible for English Learners: The SIOP^® Model (Echevarria, Vogt, & Short, 2007). CAL works with states and districts to plan and conduct professional development programs on the SIOP Model.

Visit the revised CAL SIOP Web site to learn more about the professional development options available.

*The SIOP Model was developed by researchers at California State University, Long Beach (Jana Echevarria and Mary Ellen Vogt), and the Center for Applied Linguistics (Deborah J. Short) under the auspices of the Center for Research on Education, Diversity & Excellence (CREDE), a national research center funded by the U.S. Department of Education from 1996 through 2003. Learn more.