Each school has its own timetable and rules. Every teacher has his or her own routines and teaching style. Every subject requires its own curriculum and methods. And, every class is a sea of new faces. For the substitute teacher, no two days are the same.
Every day presents new challenges.
To deal with these, substitute teachers possess unique abilities and skills. They can communicate well and establish rapport with students quickly. They strive to maintain good management of the class. Most importantly, they are creative and innovative. At times they are called upon to plan, deliver or alter lessons on very short notice.