About Response to Intervention
RTI is a structure to enhance instructional effectiveness through the use of evidence-based practice, systematic data collection and data based decision making. The framework is a tiered model of providing intervention services to students that is systematic and data-driven. The level or intensity of the intervention is based upon the specific academic or behavioral needs of the student. Student progress is monitored during all points in the system in order to provide information on the response of the student to the intervention implemented.
Office of Special Education (OSEP) Technical Assistance Center on Positive Behavioral Interventions and Supports (PBIS) http://www.pbis.org/