Eight state school teachers have been struck off for incompetence in the past three years, it is reported.
Figures from the General Teaching Council for England show that 28 teachers, out of 448,000 working in English state schools, have been subject to competency hearings since 1 January 2008.
Of these, eight received prohibition orders and were struck off, while six were suspected, five were kept on the teaching register with conditions and one had a reprimand which will remain on the register for two years. Eight were cleared.
Critics have complained that some school heads give problem teachers good references to encourage them to leave rather than dismiss them.