Here is a document that outlines 24 leadership roles for the classroom. It sets up the name of the role, the duties and when it should be completed. The idea behind this is that it would be printed out, laminated and put on a binder ring to hang by the display in class for students to refer back to throughout the year when taking on a new role. For my display of jobs I'm using pockets. Each pocket will be one job and each student has a popsicle stick with their number on it that rotates throughout the jobs on a weekly basis.