16 Printed materials, namely, books, textbooks, books and manuals for teachers, informational handouts and bulletins for parents, guides for students, student workbooks, posters, card packs, student test materials, and materials in the nature of assessment instruments and teacher instructions relating thereto for assessing student abilities, disabilities, and performance, all the aforementioned for grades preK-12 in the fields of reading, language arts, literacy, mathematics, social studies, pre-kindergarten studies, special education, understanding and helping children with special educational needs, professional development for teachers, student behavior, classroom climate, and instructional resources and strategies for teachers