IMO high grades are simply an indication of the ability to meet the expectations of either the Professor or the parents if they are paying tuition or even to yo

IMO high grades are simply an indication of the ability to meet the expectations of either the Professor or the parents if they are paying tuition or even to yourself if that is how you measure success. Grades are not typically an indication of mastery of the subject matter because that comes with application of that which was learned rather than a recitation of that which was taught. Low grades, well they are a horse of a different color altogether.