What is RTI

Response to Intervention — a multi-tiered educational framework for identifying and supporting students with learning and behavioral needs.

RTI, or Response to Intervention, is a multi-tiered instructional framework used in K-12 schools to identify students who are struggling academically or behaviorally and provide them with targeted support before referring them for special education evaluation. RTI is a proactive, data-driven model designed to ensure all students receive the help they need at the right time.

The Three-Tier RTI Model

RTI is typically organized into three tiers of increasing intensity:

Tier 1 — Universal Instruction

All students receive high-quality, research-based core instruction in the general education classroom
Teachers use differentiated instruction and formative assessments to monitor progress
Approximately 80–85% of students should succeed with Tier 1 alone

Tier 2 — Targeted Group Intervention

Students who do not respond adequately to Tier 1 receive supplemental, small-group instruction
Interventions are typically 20–30 minutes per day, 3–5 times per week
Progress is monitored every 2 weeks
Approximately 10–15% of students receive Tier 2 support

Tier 3 — Intensive, Individualized Intervention

Students who do not respond to Tier 2 receive intensive, one-on-one or very small group instruction
Interventions are more frequent and more specialized
Continued lack of progress may trigger a referral for special education evaluation
Approximately 3–5% of students require Tier 3 support

RTI and MTSS

RTI is often used interchangeably with MTSS (Multi-Tiered System of Supports), though MTSS is the broader framework that includes academic, behavioral, and social-emotional supports. RTI traditionally focused on academics; MTSS is the more comprehensive modern approach.

Legal Context

RTI was formally authorized under the Individuals with Disabilities Education Act (IDEA) 2004, which allows schools to use student response to scientific, research-based intervention as part of the evaluation process for specific learning disabilities.

Key Components of RTI

Universal screening — All students are screened at the beginning of the year to identify those at risk
Progress monitoring — Frequent, brief assessments to track student growth
Data-based decision making — Instruction and interventions are adjusted based on student performance data
Evidence-based instruction — All interventions must be grounded in research