AESOP Substitute Management Sytem AESOP is an acronym for Automated Educational Substitute Operator. District teachers use the electronic system to secure substitute teachers for their class. The instructions for AESOP are provided below.  There is a separate instruction sheet for the web and for the phone.  Please make sure that you download the correct one.  If you have further questions about the system or are having trouble please contatct the Human Resource office.