How do you put in two weeks' notice?

You should first make sure that you do not have contractual obligations to stay at your position, and then if you are in the clear, you can put something in writing and give it to your supervisor to put in your two weeks' notice.

When you give your two weeks' notice to your supervisor, you should have a plan of how you want to discuss this with them. Be sure to be clear and concise. Make sure you have a clear end date. Typically, that is around two weeks after you discuss this with your supervisor.