Universities across the United States of America as well as the world should be able to hand out grades above an A if they want to. It should be up to the people that run the school along with students who make that choice it should not be left to just anyone.
If the point of handing out grades over 100% is to reward very good work, why not hand out grade lower than 0% as well to punish bad work?
This will also stop grades from being comparable, because some places may only go to 100% while other go to 200% or more.
Universities should not had out grades higher than an A or 100%. I think that by allowing someone to score above 100% it opens the door for people to not do as well in a class and to do make up work to compensate for poor classroom and study habits.
I do not believe Universities should hand out grades above an A or above 100%. The scale has always measure from 0-100% and there is no reason to give out any grade that exceeds that. It should not be possible for a student to obtain higher than that limit, because then the grade is inflated past the norms.
An A or a 100 percent means that you mastered all of the material. There is no reason why there should b a grade above a 100 because you can't understand more than 100 percent of the material in the class. They should adjust their grade rating from below, not the top.
This is one of those cases where if it isn't broke, don't fix it. The current grading system is fine as it is, there is no reason to modify it or change it. It would be giving into pressure from overachievers who are not satisified with being grouped with the pack.