Effectiveness
No studies of SIOP that fall within the scope of the English Language Learners (ELL) review protocol meet What Works Clearinghouse (WWC) evidence standards. The lack of studies meeting WWC evidence standards means that, at this time, the WWC is unable to draw any conclusions based on research about the effectiveness or ineffectiveness of SIOP.
Program Description
The Sheltered Instruction Observation Protocol (SIOP) is a framework for planning and delivering instruction in content areas such as science, history, and mathematics to limited-English proficient students. The goal of SIOP is to help teachers integrate academic language development into their lessons, allowing students to learn and practice English as it is used in the context of school, including the vocabulary used in textbooks and lectures in each academic discipline. Using this planning framework, teachers modify the way they teach so that the language they use to explain concepts and information is comprehensible to these students. The SIOP planning and observation framework covers eight areas of instruction: preparation, building background, comprehensible input, strategies, interaction, practice and application, lesson delivery, review and assessment. In most cases, teachers receive professional development on the SIOP Model before using it to modify their lessons.
