Response to Intervention weekly progress- monitoring data driven intensive, individualized instruction inside or outside general education setting evidence-based best practice 5% Tier 3 – Intensive Intervention 5% students not responding to Tier 1 and 2 frequent progress monitoring (every other week) data driven small or 1:1 groupings usually general education setting evidence-based best practice 20% Tier 2 – Supplemental Instruction 15 -20% of Tier 1 students progress monitoring data driven flexible grouping: whole, small, 1:1 general education setting evidence-based best practice all services support Tier 1 80% students are successful focus on all students 100% Tier 1 – Core Classroom Instruction 100% students