Appropriateness of Materials: Whenever a district employee proposes to use a supplementary resource which is not included in the approved learning resources of the district, he/she shall preview the material to determine whether, in his/her professional judgment, it is appropriate for the grade level taught and is consistent with district criteria for the selection of supplementary instructional materials. The employee shall confer with their school site administration as necessary to determine the compliance of the material with district criteria. The primary considerations should be the educational value, appropriateness, and relevance of the materials as well as the ages and maturity of the students.