Browse the glossary below to learn the terms you need to know to successfully implement RTI in your school. This glossary was compiled using the following resources: The RTI Glossary of Terms developed by the IDEA Partnership @ NASDSE, the New Mexico Public Education Department RTI Glossary, and contributions from members of the RTI Action Network Advisory Council.

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Recognition and Response

Tiered model for pre-k based on Response to Intervention (RTI); designed to provide high quality instruction and targeted interventions that are matched to children’s learning needs.


Instruction intended to remedy a situation; to teach a student something that he or she should have previously learned or be able to demonstrate; assumes appropriate strategies matched to student learning have been used previously.

Research-based Instruction/Intervention/

A research-based instructional practice or intervention is one found to be reliable, trustworthy, and valid based on evidence to suggest that when the program is used with a particular group of children, the children can be expected to make adequate gains in achievement. Ongoing documentation and analysis of student outcomes helps to define effective practice. In the absence of evidence, the instruction/ intervention must be considered "best practice" based on available research and professional literature.

Response to Intervention (RTI)

Also Response to Instruction / Responsiveness to Intervention

Practice of providing high-quality instruction and interventions matched to student need, monitoring progress frequently to make changes in instruction or goals, and applying child response data to important educational decisions.