Glad that schools left the bell curve behind | Letter

Former A-level examiner Sarah Sheils on the awarding of grades and why levels of performance are higher today than 50 years ago
I was interested to see Stephen Rees’ letter (20 November) about his degree classification in the 1970s. I was an A-level examiner from the 1980s until the 2010s. During that time the awarding of grades moved from being done according to the bell curve (placing groups of results in particular grade bands according to the size of cohort) to measuring actual perform