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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Refers to the over representation of students in special education programs/services that is above state and national averages; identification of more students for services through special education than the proportion of that population in the general population.


Refers to over representation of students in specific disability-related categories that is above state and national averages.