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. The letter can be 2-3 sentences.Just say you are resigning with the effective date. 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! Bexar County will join this requirement in 2026. But it includes all of 29 counties and parts of two more (Bexar and El Paso).