RtI is a multi-tiered system of supports to support all students. At Tier I, school staff provide differentiated core instruction on a regular basis for all students. Differentiated classroom instruction should be meeting the needs of at least 80% of the students in a class based on universal screenings and formative assessments. Professional learning teams analyze class and student data. When a class has at least 80% or more of the students demonstrating mastery, interventions are implemented for the students not demonstrating mastery. In Tier I these can be group interventions such as small group instruction, additional time provided for specific concept, etc.

When a student continues to demonstrate difficulty they may require additional supplemental instruction provided by a Tier II intervention teacher. A specific intervention matched to the student needs is implemented and progress monitored for effectiveness. This can be done by the classroom teacher or an intervention teacher. When a student's difficulties place them at risk for academic failure and the student is not progressing toward grade promotion, then a Personal Education Plan (PEP) is developed. In WCPSS, this applies to students in all grades, K-12.

Every Wake County school has a Tier III Team. The goal of this team is to strengthen and support the individual student by analyzing all available data within a problem solving approach. Members of the team, which the parent can be a part of, will create a plan with strategic interventions matched to the student need. Interventions will be more intensive in duration frequency than those provided at Tier I and Tier II. This plan will be monitored to ensure the intervention is an effective intervention for this particular student.