Below are examples of resignation letters for the school administration and principal, coworkers, and parents of students. This is to inform you of my intention to resign.My last day of work will be (DATE). Use one of our resignation letter templates. Inform them that you will be resigning, state the position that you are resigning from, and indicate what your last day of work will be. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. I am writing to inform you that effective immediately. 4100 Normal Street, San Diego, CA 92103. San Diego Education Association.