If you are qualified as a teacher then you have the option to do supply teaching work. A supply teacher will often find that their role varies from school to school and often even from class to class meaning that each day is different and there are new challenges. Sometimes a supply teacher will be working off lesson plans that have already been given to them and other times they will be responsible for planning the lessons, teaching them and also marking the work afterwards.
Supple teachers are often paid more per day than permanent teachers so often they only need to work three days a week to earn the same as a permanent teaching role of 5 days a week, but supply teachers do not get paid for the holidays unless you are on some sort of a contract which states you will.
With the variety of the job, many people say they enjoy supply teaching and find it more interesting than teaching the same class day in day out, although you can be offered a longer term supply teaching contract. For other teachers, they like the opportunity to be able to build up relationships with the pupils and watch them grow.