Have you noticed the importance of…?
those of us who are teachers grapple with that question daily … how much criticism is enough to encourage and how much praise will render the work sloppy and not improve the student … that criticism of Prokofiev might have been totally appropriate for him .. we don’t know the context … it may have been what he needed to go on to the heights he achieved …. good example are these 2 brothers I know the elder 14 is very serious about his violin playing and his current teacher will not let him finish a measure without it being perfect … his younger brother is very cheery and happy go lucky and close is good enough to him .. that one challenged me to teach like his brother’s teacher which I did after 5 minutes he begged me to stop …. each person is so different that harsh criticism could challenge or discourage it is so very vital that we teachers try to guage how much and when we get critical