1. Be sure you understand how appraisals are done at your school. While most aspects of the process are mandated by the state and are the same in every school, some things are not. Find out who will do your observation, if you will get advance notice, and if you can refuse certain times.
2. Ask for a pre-conference with your assigned evaluator. This gives you a chance to prepare the evaluator for what he/she will see. Talk about your teaching style and any peculiarities of your classes.
3. Immediately after your observation, write up notes on how you think it went, noting anything unusual that happened or anything you think the evaluator may not have fully understood.
4. Write a follow-up note to the evaluator summarizing the class and adding any information you think might be helpful (such as that the student who didn't answer you and you didn't correct wears a hearing aid that doesn't always work).
5. If you're happy with the appraisal report, celebrate with a piece of chocolate or a bouquet of flowers for yourself.
6. If you're not happy with the appraisal report, ask for a conference and outline your concerns. If you are still not happy after the conference, write a response for the file and consider whether you should file an appeal.
You can get help from your teacher association, or me!