Substitute teachers step in when the regular teacher is absent or otherwise unavailable. You will do the same job as a regular teacher and will carry out the lesson plans that the teacher has laid out. In that way, there is very little autonomy in deciding what will be taught or how it will be taught. As a substitute teacher, you have the huge advantage of being able to choose when and where you want to work. This freedom allows you to plan your time to your benefit and gives you time for other endeavors. Here is a strong resume sample.