I am currently looking into supply teaching after only ever working on a permanent contract before (this is my 6th year of teaching). My main question is, does anyone have any advice on supply teaching? Should I register with multiple agencies? When does work tend to filter out or be busy? Does the whole registration process take a while? How does the DBS check work? I am looking for day to day supply in primary schools, although have any primary teachers ever been able to go into secondary schools? Thanks very much.