(Photograph) - As the exam season closes, the spotlight shifts to more than 9,000 markers (those photographed above are grading the practical work of some 40,000 art and design candidates). On his first visit as Education Minister to the Scottish Qualifications Authority offices in Dalkeith, Peter Peacock met some of the 20,000 part-time staff hired each year to process “a staggering” 3 million exam papers