A.L.
I don't know if you have tried this or not but when I was younger my parents tried the money modivation. I got $5 for every A $3 for every B and $1 for every C but got -$3 for every D and -$5 for every F. If I got straight A's (i never did but tried) that was a $50 report card and then they would add a $1 to each grade on the above chart for the next round of grades on my report card (if that makes sense). From age 11 and above I as most girls became really interested in clothes and more so in high school since for some reason back then they seemed oh soooo important. :) So having a way to get extra money for more clothes ended up being a realy modivator. That and I hated being grounded all summer while my friends were playing the year I got a really bad report card. :) Good luck!