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. Below are examples of resignation letters for the school administration and principal, coworkers, and parents of students.Under the Texas Education Code, contract employees are required to resign no later than 45 days before the first day of instruction for the school year. Employees who desire to resign or retire must notify the district of their intent to separate from the district. A Resignation Letter is typically a formal document given to employers two weeks before an employee resigns from a role. Share this document. This sample resignation letter is available for use on UpCounsel. Please accept this letter as a notice of my resignation. A letter to someone requesting that they are not using the application. An effective resignation letter includes your name, your job title and your departure date.