The SIOP Model of Sheltered Instruction including links describing SIOP and Sample Lesson Plans

As the number of English learners increases in schools across the United States, educators are seeking effective ways to help them acquire the knowledge and skills they need to succeed in the classroom and beyond.

The SIOP Model* is a research-based and validated model of sheltered instruction. Professional development in the SIOP Model helps teachers plan and deliver lessons that allow English learners to acquire academic knowledge as they develop English language proficiency.

http://www.cal.org/siop/