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[ Pre-recorded compact discs, and audio cassettes, sold to educators as part of a set pre-approved for classroom use in teaching in accordance with state approved curricula, all featuring language proficiency testing and instruction in language and speech ]

Printed instructional, educational and teaching materials sold to educators as a set pre-approved for classroom use in teaching in accordance with state approved curricula, namely, teachers' manuals, student workbooks, printed tests and wall charts, all pertaining to language proficiency testing and instruction in languages and speech