Perhaps schools should adopt the IIHS ratings scale: Good, Acceptable, Marginal, Poor. Doing away with letter grades that have strong historical bias and cultu

Perhaps schools should adopt the IIHS ratings scale: Good, Acceptable, Marginal, Poor. Doing away with letter grades that have strong historical bias and cultural signaling might be useful. Example: http://www.iihs.org/iihs/ratings/vehicle/v/toyota/4runner http://www.iihs.org/iihs/ratings/vehicle/v/toyota/4runner