Needed no fails this quarter to get financial aid, got one F, how to approach professor for a D-?

Blossom, if it comes to it, I will meet up wth him. However, the sooner the change can happen, the better because the quarter starts on Monday.
My background in the math needed for the class was fine, I just needed more practice with what we needed to do in class. The quarter system just made it a bit hard for me to have that time.