Okla. Admin. Code § 720:10-1-2
The following words and terms, when used in this (Chapter, Subchapter, Part), shall have the following meaning, unless the context clearly indicates otherwise:
"Adopted materials" Adopted materials refers to materials approved by the State Textbook Committee and purchased with state funds.
"Ancillary material" Materials intended and designed to be used with a comprehensive program submitted with the corresponding comprehensive program or comprehensive materials with the publisher bid. Examples of this type of material may include, but are not limited to, workbooks, quizzes, and test banks.
"Comprehensive material or comprehensive program" Instructional materials or textbooks designed to guide instruction for, and learning of, grade-level courses or subject areas. Materials should align to and encompass the breadth of Oklahoma Academic Standards or learning objectives associated with the grade level(s) course being bid.
"Core subject cycle" This term refers to the period of time for which contracts are entered into for subjects identified by the State Textbook Committee. The cycle begins when contracts go into effect for the items bid in a subject area, and the cycle ends when the contracts expire and new contracts are established for materials in the same subject area. The State Textbook Committee operates under a six-year adoption cycle for all subjects except Instructional Technology, which operates under a three-year adoption cycle.
"Free materials" Materials in any medium which a publisher intends to make available without cost upon the purchase of textbooks bid and adopted.
"Supplementary materials" This term refers to items intended and designated to guide the instruction of one or a few of the curriculum standards for the subject area for which the item has been submitted. Supplementary materials are designed to be used independently or cooperatively with bid items submitted in the same subject area by the same or different publisher. Examples of supplementary items may include but are not limited to maps, atlases, flash cards, classroom libraries, stories about significant people in the subject area, selected readings, literature guides, assessment materials or textbooks or instructional materials teaching about one component of a subject area.
Okla. Admin. Code § 720:10-1-2