What state are you in? It would help to know so someone from your state will be more likely to chime in.
Here in PA we don't have to have a quarterly report and we are one of the "strictest" states, I'm guessing maybe you are in NY?
I have to keep a portfolio containing a reading log and samples of work, I don't grade anything really, if I had to turn in grades I guess I would most likely just turn in Letters or O(utstanding), S(atisfactory), A(cceptable), and I(mproving).
Homeschooling DD~9, MDS~8, and YDS~5 and mom to ODS~15 who goes to a tech school.