I have to say that as a teacher I find that really strange.

I teach in a private school, and the hours we are required to be at the school are longer than the hours that the children are expected to be there.

We also offer, free of charge, a couple of extra help sessions each week so that kids have access to teachers to get help outside of their normal class time. I find it strange that a school would ask parents to pay for extra help, but perhaps it's just me that doesn't see helping students outside of class time as a hindrance and an imposition. Then again, it does seem to be only our faculty that does it at the school, so who knows?

BW