Poor planning and delay over changes to qualifications and other reforms will lead to three years of turmoil for students and teachers, the Association of School and College Leaders will warn at its conference today in Birmingham.
The association has today published a list of seven issues which have yet to be decided by the Department for Education and education body Ofqual, which are hindering teachers' ability to plan and prepare students for the new GCSEs, which should start to be taught as early as September 2015.
More top news
Paramedics were called to reports of an unresponsive baby girl on a bus in east London - she later died in hospital.
Government ministers from the UK, France and China attended the event.
Tonight investigates the increasingly sophisticated methods criminals are using to target the elderly and defraud them of their savings.