So David Cameron has announced that he doesn't want duffers with a third class degree going on to be teachers. Carol Vorderman (who headed their Maths Task Force) might have something to say about that, but then there is a world of difference between a third in Engineering from Cambridge thirty years ago and a third awarded this year in Cultural Drama Studies from Happy Valley ex Poly. (I didn't think they even gave out Thirds nowadays, I assumed that everybody was given a First in case they got upset)
Teaching of course is very socialisty, so there will be queues forming up to declare that degree grade is no indication of teaching ability. Now they may well have a point- think back to your own schooldays and remember the bearded teacher wearing a battered brown jacket with leather elbow patches, who no doubt mumbled lots of very clever things; but nobody heard them because he couldn't control the class. On the other hand, there is a real problem now at many schools especially in Science; with teachers who don't know much about the subject that they are supposed to be teaching.