> > Grades are sharp instruments used to divide groups of students
> > imperfectly but meaningfully.
>
> *divide to conquer ...
> *teachers give grades ...
> *grades divide ...
> *teachers are dividing ...
> *teachers are ... conquering?
>
> power, centralization, hierarchy, blahblahblah, administrative
> concerns, yaddayadda, nothing we can do, etc. ...
No, not much to do about grades, but evaluation is a different story.
jrg