Do you use rubrics? If so, how do you convert to a percentage grade? Big debate at my school and just wondering what you all think? (FYI - in particular, as it relates to writing assignments.) We have one group - they say total number points divided by total possible equals percentage. (Ex. 4 categories, 5 points for total of 20 points. Student scores 1 in each cat. 4/20=20%) Other group - sliding scale, mathematical program that figures it out, something else..... TIA!