The government has taken over the running of a Derby school with about 900 pupils after raising "serious concerns" about standards there.

BBC: Sinfin Community School governors replaced by government

Bedford Free School opened in September with nearly 200 pupils, despite council concerns about traffic congestion.

BBC: Government allows Bedford Free School to stay open

However, teachers' leaders have said they have serious concerns about the ability of schools to bring in the curriculum and prepare pupils for new national exams planned for 2013.

BBC: Royal Society praises Scots education system

But teachers' leaders said they still had serious concerns about the ability of schools to bring in the curriculum and prepare pupils for the new national exams which will follow in its wake.

BBC: EIS teaching union calls for national exams delay

More than 50, 000 pupils have completed the tests but some principals have said they have concerns about the results reported to parents.

BBC: Education Committee