The Education Ministry played down claims yesterday that exam markers upped the scores of university candidates in June, saying the incident was due to a misunderstanding. Education Minister Marietta Giannakou said that instructions given to teachers to be more careful when marking university entrance exams may have been interpreted by some officials as directions for papers to be marked again. Nine teachers in Thessaloniki were charged earlier this week on charges of falsifying results. Ministry officials said that a larger number of students failed the subject this year, indicating that there had been no preferential treatment. Ministry sources said that news of the improper marking may prompt some parents of students that failed the English exam to appeal the fail grade. English test scores are expected to be posted at secondary schools across Greece on Monday.