Here's an article on a prototype "classroom of the future". I think it's pretty neat because it's a "chairless" school. There are standing desks, but the focus is on having students move (or at least not just sit) while they learn.
The project began with a simple question: do students really need to sit at desks in order to learn? My guess would be no! I think the research will eventually show that movement strongly impacts learning.
This also fits in better with our evolutionary heritage. In ancient times, children or young adults wouldn't have sat around motionless for hours listening to others. I think the combination of sitting-and-learning probably came into vogue just as a way for teachers to exert control.
The way modern schooling is set up is very unnatural from a biological standpoint. It seems that even though people recognize this, not much changes. Hopefully, this new classroom will be a step in the right direction.