Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward.Download our Resignation Letter template for Teachers to ensure that you leave professionally and amicably. Need to know how to write a resignation letter for teaching? Then read this guide from an EX-teacher filled with tips and templates! Here are sample teacher resignation letters and templates which cover the structure and tips we shared in the blog. Expression of Gratitude: Express your appreciation for the opportunity to work at the school. In the opening paragraph, clearly and directly state your intention to resign. I am writing to inform you that I will leave this school at the end of the current semester. Clearly state that you are resigning from your teaching position and provide the effective date of your resignation.