A great number of teachers are considering leaving the profession according to recent reports and generally the reason for this is that although they enjoy teaching they get dissatisfied with the amount of paperwork and data that is required. Supply teaching therefore is seen as a viable alternative to a full time teaching role as it fits in better with family commitments and also gives the teacher the flexibility to work the hours that they want to and start enjoying teaching again.
Many local authorities will only accept supply teachers who are signed up to an agency, but sometimes smaller schools are more flexible in their approach. Agency work may result in slightly less pay but you may be guaranteed regular work if this is something that you want.
In preparation for being a supply teacher it is sensible to have a folder of work containing ideas for lessons that you could set for pupils across the age range that you are prepared to teach. In the majority of cases where the supply cover is planned the class teacher will set work for the class but in an emergency call out it is better to have your own resources to rely on.