Teaching your kids that call numbers are the key to the layout and organization of the library is important! In this engaging unit, students become library detectives, practice their call number skills with "cases", take "checkpoint" tests, and ultimately earn a library license. If your library is automated, the library license can be barcoded and used to check out books. Fun for all!!The library access skills covered are ...* Books are divided into nonfiction, easy fiction, and chapter books.*