In the book Matilda, by Roald Dahl, Matilda, a little girl, defeats the antagonist, Ms. Trunchbull, by spelling out a menacing letter to her on the blackboard while sitting in her desk, using 'magical skills' she acquired when her superior intellect was channeled into an invisible force she was able to control. As you could imagine, having a letter spelled out to you with nobody visibly writing it would be frightening as heck, enough to drive any ex-olympian beast woman headmistress out of town. But now, that's what you see every day in classrooms, with the introduction of the SMART-podium, now employed by many teacher. It was installed right after everyone figured out that yes, a smart board is cool, but you still have to stand at the front of the classroom, AND you block the projector light, and while sure, you can move things around and let the kids use it, it is really just way too much of a hassle. Anyway. So now you see this everyday. But as you watch the words form themselves on the screen, as though written by an invisible hand, you think nothing of it, and simply continue to copy down all the facts about cellular respiration you never wanted to know. Although to be fair, the words being written are probably not claiming to be written by a ghost of a man you killed and tortured the daughter of.

Miss Honey was definitely too good to be true
Teagan