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
Top temperatures 10 Celsius (50F).
Britain and the European Commission reached agreement on a transition deal which will allow talks on the future trade relationship.
MPs called for better support for working fathers to help them care for their children.