; or (E) an institution of higher education (including a Tribal College or University (as defined in section 316 of the Higher Education Act of 1965 ( 20 U.S.C. 1059c )). (6) English language development The term English language development means instruction designed specifically for English language learners to develop their listening, speaking, reading, and writing skills in English. English language development instruction may include English as a Second Language, English for Speakers of Other Languages, English as a New Language, English Language Learner instruction, and English Learner instruction. (7) High-need local educational agency The term high-need local educational agency has the meaning given such term in section 200 of the Higher Education Act of 1965 ( 20 U.S.C. 1021 ). (8) Reading, literacy, or biliteracy specialist The term reading, literacy, or biliteracy specialist means a certified professional— (A) whose primary responsibility is working with students who struggle with reading and writing; (B) who has completed additional certifications or course of study and is able to demonstrate the ability to implement intervention strategies for the building of reading and literacy or biliteracy skills; and (C) who may also be referred to as an interventionist, reading teacher, or by an alternative title. (9) Section 504 Plan The term section 504 plan means a reasonable accommodation developed for students with disabilities to receive the appropriate educational support services to fully participate in school activities and have equal access to educational opportunities, in accordance with section 504 of the Rehabilitation Act of 1973 ( 29 U.S.C. 794 ). (10) Secretary The term Secretary means the Secretary of Education. (11) Subgroup of students The term subgroup of students means— (A) each major racial and ethnic group; (B) economically disadvantaged students as compared to students who are not economically disadvantaged; (C) children with disabilities as compared to children without disabilities