Belle we had a similar situation when my ds7 was in public K. He told the teacher he wasn't going to do that work b/c he did that when he was 2 years old. Well, that didn't go over well with the teacher and he couldn't go to lunch until he had finished it. Well, he sat in the vice principals office and was slowly doing it until the last lunch period. She allowed him to go to lunch but not reses and then had to go back to her office to finish the work. His behavior got so bad that he hit his teacher and then as soon as he did it he started crying and appologized. He started having bad behavior at church and at home. Once we started homeschooling the behavior slowly went away and now he is a good boy again.

The mentor would be an interesting idea.