Sheltered Instruction Observation Protocol Engaging students meaningfully If you ask a teacher what SIOP is, you may get a host of answers. One might say, “It means Sheltered Instruction Observation Protocol.” Another could say, “It’s a way to plan a lesson for ELLs.” Still others may say, “SIOP has to do with using Best Practices when you teach.” Some teachers may even ask, “doesn’t SIOP have to do with academic language?” In essence, each response carries some truth. SIOP , Sheltered Instruction Observation Protocol, was created as a means of helping teachers meet the needs of English language leaners (Ells) in the content area classroom. It's now used to help teachers plan, teach, and reflect on a content-based lesson with a language and literacy focus. SIOP K-12 Professional Development Read on for more information about Sheltered Instruction.... What is SIOP? TE...