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. Use our Teacher Resignation Letter template to give notification that you are leaving your position.Leave your school on good terms using our document. Looking to resign with a Substitute Teacher Resignation Letter? Use our resignation letter template for education roles. Need to know how to write a resignation letter for teaching? Then read this guide from an EX-teacher filled with tips and templates! The letter can be 2-3 sentences. Just say you are resigning with the effective date. If you are a teacher employed under a Chapter 21 contract and you decide not to return to Fort Bend ISD next year, it is important that you notify the district.