Fun video from SMART, it’s a little commercial but still effective. I think that its really interesting how the technology at each stage served as an extension of the teacher until the current period. This was most apparent in the “computer age” animation. The screens were simply reproducing what was going on at the front of the room. The teacher was still the centrepiece and the technology was simply a tool to provide passive content.
It is only in the final “interactive age” that things become more decentralized. The students are using the technology in a much more self-directed manner. The goal is interaction and not content delivery.