If people in a classroom look confused, the instructor can see it. That's the problem with videoconferencing by comparison. You have a class looking at a monitor or screen and there's a camera trained on the class. The class is conscious of the camera and they look at the monitor as if they're watching television. It's not natural.
Teleportation allows people to concentrate on the message rather than the technology.
Math teacher Catharine Darnton laughs when she recalls how students at Graveney School in London did a double take the day they saw her ghostly image appear above a lectern in her classroom. Darnton took part in a demonstration of White's system earlier this year. She was teleported from an education technology trade show to her school eight miles away. The students quickly forgot that I wasn't really there because I could make eye contact with them. It could also be used to beam a far-away expert into the classroom.