Response to Intervention
In education, Response to Intervention (RTI or RtI) is an academic approach used to provide early, systematic, and appropriately intensive supplemental instruction and support to children who are at risk of or currently performing below grade or age level standards. However, to better reflect the transition toward a more comprehensive approach to intervention, there has been a shift in recent years from the terminology referring to RTI to MTSS, which stands for "multi-tiered system of supports".