This document discusses Response to Intervention (RTI) and its implementation through a multi-tiered model. RTI aims to identify students who need additional academic support early through ongoing assessment and data-based decision making. It uses a 3-tiered approach where students receive increasingly intensive instruction and intervention at each tier. At Tier 1, all students receive core instruction and are assessed to identify struggling learners. Tier 2 provides targeted small group instruction. Tier 3 offers intensive individualized intervention that may indicate a need for special education services. Collaboration between general and special educators is important for successful RTI implementation.