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Browse our collection of resources on relevant topics for educators, policy makers, and anyone interested in learning more about the research-based SIOP Model and sheltered instruction. These resources include lesson plans, instructional activities, case studies of professional development, research briefs, digests, publications, products, frequently asked questions, and an electronic newsletter.

Online Resources

Lesson Plans and Activities
View our collection of free lesson plans and activities that can be downloaded for use in implementing the SIOP Model in your classroom. Learn more.

Briefs and Digests
Download summaries of evidence-based information on issues related to using the SIOP Model and sheltered instruction.

View our collection of products available for purchase to support learning about or using the SIOP Model.
Learn more.

Sign up to receive our periodic electronic newsletter, the CAL SIOP Bulletin, or read past issues.
Learn more.

Frequently Asked Questions
The CAL SIOP team has compiled answers to frequently asked questions about the SIOP Model, its implementation, and CAL SIOP services and resources.
Read the FAQs.



SIOP History - Woman at Computer

CAL was a partner in the Center for Research on the Educational Achievement and Teaching of English Language Learners (CREATE). The following briefs outline the program of research relating to the SIOP Model.

Click on the links below to read and download the free briefs.

  • Effective Practices for Increasing the Achievement of English Learners
    This research brief highlights the successful efforts of two schools (one elementary and one secondary) to improve the achievement of their students through the use of the SIOP Model of instruction.
    Download the brief.

  • The SIOP Model: A Professional Development Framework for a Comprehensive School-Wide Intervention
    This brief outlines the impact of the SIOP Model on the creation of a school-wide, comprehensive intervention designed to support English language learners across the core content areas.
    Download the brief.

  • Using the SIOP Model to Improve Middle School Science Instruction
    This brief describes how the SIOP Model provides teachers with specific lesson features that, when implemented consistently and to a high degree, lead to improved academic outcomes for English language learners.
    Download the brief.