Well at the very least you have one that wishes to learn, I couldn't imagine having class after class with no desire to learn anything. 
Some don't understand the stress a teacher endures, I didn't until I actually had to teach. (which not all of them not wanted to learn) and when I was in high school half my classes had students like that, I felt sympathy for the teacher but I couldn't empathize until later.
Still within the roughest piece of rock can shine the brightest diamond.
I know it's not the best analogy but you serve as one of the polishers so I wish you the best of luck in your endeavor. I personally don't think I'd have the patience for it it's necessary though. Older generation passes things to the younger, it's just how it works.