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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Learning Disability

IDEA 2004 defines a Learning Disability/Specific Learning Disability in the following manner: The child does not achieve adequately for the child’s age or to meet State-approved grade-level standards in one or more of the following areas, when provided with learning experiences and instruction appropriate for the child’s age or State-approved grade-level standards.

(i) Oral expression.
(ii) Listening comprehension.
(iii) Written expression.
(iv) Basic reading skill.
(v) Reading fluency skills.
(vi) Reading comprehension.
(vii) Mathematics calculation.
(viii) Mathematics problem solving

Learning Rate

Average progress over a period of time, e.g., one year’s growth in one year’s time.

Local Education Agency (LEA)

Refers to a specific school district or a group of school districts in a
cooperative or regional configuration.