Teaching unions are offering a divided response to government plans to improve teaching standards.
Education secretary Michael Gove is overhauling the rules affecting how headteachers monitor the performance of struggling teachers - and how they give them the sack.
The changes scrap a three-hour limit on which headteachers can spend in a teacher's classroom, allow the dismissal of a teacher after just one term and prevent fired teachers from moving to another school.
It is not clear how many teachers would be affected by the move. Three per cent of schools are currently assessed as having poor teaching standards.