I asked DS9 to speculate on an alternate reality where a mom like me pays money for every "B" on the child's report card - when he was 7. He was horrified. (I would not have even suggested this if I had realised how misplaced he was in his classroom.) It did stop him agitating for money for "A"s. The point at the time was that I wanted him to stop pouring all his energy into the schoolwork and spend "some" on being a good classroom citizen. Part of what fueled his perfectionism at the time was that he was placed in a situation where he could not possibly get 100% all the time due to the work being "too easy" to muster attention onto. Plus the teacher was looking for the "next appropriate developmental step" which has never fit DS9.