ESL Teacher Resignation Letter. Customize any of these resignation letters in minutes using our free AI-powered resignation letter builder..Linked below are templates for resignations and retirements. Please be certain that your letter is signed, dated correctly and addressed to your administrator. Fill out the form on this page to get a free editable Google Docs template with sample teacher resignation letters to help you compose your own. Due to unforeseen personal reasons, I have to step down from my teaching role. Below are examples of resignation letters for the school administration and principal, coworkers, and parents of students. Need to know how to write a resignation letter for teaching? Then read this guide from an EX-teacher filled with tips and templates!