This unit is for students who have a familiarity with decimals and have used the Dewey Decimal system to find books in the library before and are ready to learn more about how books are classified and shelved. This unit includes lesson plans, teacher notes, a student note packet, a student worksheet with a practice game and a quiz.The answer key for this unit is available as a free download here. *Updated for 2020* The student pages are now available as a digital activity. This could be paired w