Substitute teachers need flexible nerves of steel.
Pros: One can plan their availability and has the option to accept assignments
Cons: Every day is a new day at a new location in a new class room with a different set of challenges.
Substitute teaching is a very challenging job. Although most schools will try to hold on to their favorite floating subs, most substitute teachers do not know where they will be assigned next. Furthermore, they may not find out the nature of their assignment (grade level, specific classroom, special education, etc.) until they get to the school. Sometimes there are lesson plans and/or resources ready for use, other times the substitute teacher has to make something happen. For this reason, substitute teachers need to be prepared for anything. Substitute teaching requires a lot of nerves. One can use it as a temporary source of income. I would encourage those who are interested in doing long term substitute teaching to simply consider becoming a full time teacher.