Leading article: Teacher will know

Ruth Kelly, the Education Secretary, is right to order a subject-by-subject review of the amount of coursework to be used in GCSE. However, it remains to be seen whether the special adviser appointed by the Qualifications and Curriculum Authority to help schools and exam boards detect plagiarism in coursework will be successful in her task. We think that teachers are best placed to spot cheating because they can compare the coursework submitted with pupils' classroom work.