When using the mean, do we take into account if a student has one bad day or even the reverse, one exceptional day?
Does the mean represent the overall level of achievement for each and every student?
If you have a computer grading system, like MiStar. This is difficult to do. We do a have a teacher in our building who actually turns off grades for parents and uses the mode method to determine grades for students. It is something interesting to explore more. If you decide to take this path, parent communication is key and lots of it.