This work was created for a Lower Elementary Montessori classroom but can be used for any student learning how to assemble a calendar. Work is intended to be printed on card stock and laminated. Cards for Months are written as January, Jan. and 1. Cards for Days are written as Monday, Mon. and M. Cards for Years 2012 - 2023 are included. A worksheet and answer sheet are included for facts regarding calendars. (Example: There are ____ days in January, etc.). I tried to provide as many options to teach this work as I could. Please provide feedback and suggestions. I am open to all suggestions to improve.