Definition of RTI
- 1. Explanation of Response to Intervention (RTI) by nysrti.org Tier III Tertiary intervention intended for about 1-5% of students who are not responding to instruction at Tiers 1 & 2 Tier II Secondary Intervention intended for 10-15% of students who are not making adequate progress with core instruction at Tier 1 Tier I Core instruction or primary intervention intended for all students in the general education classroom Tier I Characteristics Interventionist: general education teacher Setting: general education classroom Grouping: variable and flexible grouping formats Curriculum: scientific, research-based instruction aligned to state learning standards in core academic areas Duration: year-long Length of Instructional Sessions: involves a minimum of 90 minutes of uninterrupted, ELA instruction per day Assessment: all students are screened at least 3 times per year (Fall, Winter, Spring) Progress Monitoring: students initially identified as at-risk on screening measures are progress monitored on a weekly basis for 5-6 weeks
- 2. Tier II Characteristics Interventionist: trained, skilled and knowledgeable school personnel Setting: variable, can occur in and/or outside of general education classroom Grouping: small, homogeneous grouping (1:3 – 1:5) Curriculum: scientifically research-based instruction designed to remediate skill deficits of targeted students Duration: varies – based on rate of progress and performance of students; 10 to 30 weeks minimum Length of Intervention Sessions: 20 – 30 minutes, 3 to 4 times per week Assessment: may include formal and informal measures to inform instruction Progress Monitoring: twice monthly to examine rate and level of performance Tier III Characteristics Interventionist: highly trained, skilled and knowledgeable school personnel Setting: most often takes place outside of the general education classroom Grouping: small, homogeneous grouping (1:1 – 1:2) Curriculum: customized, intensive, systematic and research-based instruction that targets academic areas of greatest need Duration: varies- a minimum of 10-30 weeks Length of Intervention Sessions: 30 – 60 minutes, five times per week Assessment: may include formal and informal measures to inform instruction Progress Monitoring: minimum once per week