Originally Posted by Dexai
One way they could rename it is "First Circle", "Second Circle", and so forth, rather than spell level.

The thing that would really help Larian and WotC would be a set of videos that explains this in terms like this or the one the OP suggested. " If you've played _____ you know that you don't get second circle spells until character level 3. The same principle applies but . . . ."