Learn how to write a professional two weeks notice letter with our step-by-step guide. Expert tips, mistakes to avoid, and templates.The state requires a 30-day notice from teachers. If we don't give that, the state can revoke our teaching license for the remainder of the school year. Aim to provide at least two weeks' notice, as this is standard practice. How to Use Two Weeks Notice Letter? A two weeks notice letter must be professional and concise. Clearly state the intention to resign, citing the last working day. Generally, if you give two weeks notice it means you will work full effort for the remaining 2 weeks including training your replacement. Need to write two weeks notice?