It's very similar for Access Copyright. As affiliates, we can certainly make sure that they provide you with whatever statistics we have. There's a per student rate, which is currently $3.63, and then there's 10ยข a page thereafter for up to 10% of a work. If you need more than that, then you can negotiate a higher licence.
This is in the interest of publishers, obviously, as well as creators. If they could just go ahead and copy whatever they wanted to copy because they were educators, we'd lose our educational publishing industry. That's our fear.