They’re a source of both anxiety and pride, but school marks can also have long-term consequences for students. Most teachers reward student achievement, but also the skills, attitudes, habits and behaviours that are necessary for lifelong learning. However, as this month’s PISA in Focus  points out, the tendency of teachers to award higher marks to girls and socio-economically advantaged students than to boys and disadvantaged students – even if they perform equally well in school and have similar positive attitudes towards learning – is cause for some concern.

Students often base their expectations of further education and careers on the marks they receive in school; and school systems use marks to guide their selection of students for academically oriented programmes and, later, for entry into university. So whenever teachers reward – or punish – certain student characteristics that are unrelated to learning they may inadvertently shape a student’s future according to factors that have nothing to do with the student’s abilities, talents and personal goals.