>Forgetting the 'h' on kWh IS the kind of "writing down as the clock >is ticking" error, and if it's obvious the student knew what they >were doing it's completely unreasonable to give them a zero on the >question. Certainly having the wrong units is worth loosing a mark, but if the underlying method is correct, then most of the marks should be awarded. But if you cannot get the units correct at the end, you certainly shouldn't get the full 100%. But then the exam I had last year, the way it was set up you could get 115 marks for the exam. Anyone getting 100+ marks got 100%, below 100 marks and the mark became the %. Did mean that if your pure maths was better than your applied maths (or the other way around) you still had a fighting chance at getting a good grade. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist