One day we’ll look back and say, ‘remember when we had blackboards in schools, how quaint.’ Despite the impressive cost advantage and the fact that they work even when the power’s out, blackboards haven’t really advanced over the decades have they? Which makes them ripe for innovation in some way.

This Portable USB Whiteboard could be one option. The device works alongside a standard projector and laptop computer to give an interactive tool which lets you write on the wall with the supplied infrared pen and treat it just like a touchscreen interface. Only bigger. Much bigger. Take a look at the video to get a better idea of how it works.

https://youtu.be/-XiVcgqt2Uw

The system works via infrared, delivers a 150 inch diagonal screen size and the pack includes a receiver, pen stylus, extendable pointer pen, manual, cables and software. It’s designed for classrooms, presentations and other activities where it’s useful to be able to annotate for a room full of people. Or students. Priced at $139.82 /£93.62.