For Lucy, however, the majority of what McGonagall had been teaching them was what she already knew. Although it could have possibly been a waste for Lucy to have to re-learn everything, she was still grateful to be taught by a proper instructor. In fact, the Headmistress had helped Lucy to better understand things that hadn't made sense before.
"If you'd like, though, I could maybe, help you a little bit? I'm afraid I know a lot of what she's been teaching the past couple of weeks.."