EXPERIENCED, CERTIFIED CLASSROOM TEACHER
I know how the system works
Most sub plans are basically make work. Do students really have the luxury of missing a day of instruction? I taught self-contained fourth grade for eight years. I taught six grade math for two years. I taught sixth grade social studies for one year. I ran the media center and was the technology coordinator for two years. I can teach the currulicum. Busy work not necessary.
I know how students think
Some students see a substitute teacher as an excuse to goof off. I have the necessary classroom management skills to keep students on task. It is enough of a disruption to have the regular instructor gone; you certainly don't need additional behavior problems. I have always been able to handle student behavior in the classroom. Of course there are extreme instances, but they are few and far between.
LEAVE A LESSON OUTLINE OR I CAN FILL IN THE GAPS
I know the material
I do not need detailed sub plans. It is enough to say "the class is working on equivalent fractions." With a few hours advance notice, I can even provide materials to suplement the book. I have a PowerPoint presentation for every math indicator and reading objective. I have videos with worksheets. I have hands-on lessons that I devised. I always hated to be gone because putting together understandable sub plans was such a hassle. Give your staff a break.