Like temp work in an office, substitute teaching can be an avenue to a full-time job. It's an opportunity for both you and school to see whether you work well together. Even if you aren't offered the specific job you've submitted for, the administration has seen you at work in the classroom and can consider you for other positions or recommend you to others.

One of the best aspects of being a substitute is that you choose when you want to work, whether part-time or just occasionally. Turn down jobs on days that when you have other commitments or when you just want some time off. If you are offered a longer assignment, choose to accept it or keep to a schedule that suits you better.