CAL SIOP and Sheltered Instruction

The Sheltered Instruction Observation Protocol (SIOP) Model is an instructional model for lesson design and delivery. It is based on and validated by research, and it has proven effective in addressing the academic needs of English learners in the United States and around the world.

The SIOP Model comprises eight interrelated components: lesson preparation, building background, comprehensible input, strategies, interaction, practice/application, lesson delivery, and review/assessment. Using instructional strategies connected to each component, teachers design and deliver lessons addressing English learners’ academic and linguistic needs.

As the number of English learners increases in schools across the United States, educators seek effective ways to help them succeed in the classroom. Research shows that when teachers implement the SIOP Model, the academic performance of English learners improves. Teachers report that SIOP-based teaching benefits all students, not only those learning English as an additional language.

Professional Development Services 

CAL’s experienced SIOP team collaborates with schools, districts, and states to plan, implement, and support instruction using the SIOP Model. Informed by CAL’s ongoing research, CAL provides a suite of professional development offerings tailored to your needs.

CAL SIOP offers professional development services tailored to grade level and content areas to help educators understand how the SIOP Model’s components can be implemented for their students. Our PD services help early childhood educators incorporate instructional routines that promote peer-to-peer interaction; Career and Technical Education teachers identify academic language specific to content areas such as visual arts, computer programming, and mechanics; and science teachers create instructional activities that provide English learners with opportunities to apply both science content and language knowledge.

Find more information on our latest research, projects, and resources, including information related to PreK-12 EL Education, at Contact us at to discuss your interests. Explore our offerings below!

Featured Solutions