'We will need more English and maths teachers'
2 September 2013 Last updated at 07:47 BST
More English and maths teachers will be needed to instruct teenagers forced to continue studying the subjects, the president of the Association of Teachers and Lecturers has warned.
Under the new system, 16-year-olds who have not achieved at least a C grade or better will now be required to keep studying English and maths up to the age of 18.
Speaking to BBC Breakfast, Alison Sherratt suggested that resources could be better spent elsewhere as "children who fail the exams so consistently... need the practical things rather than another test".