If you ask most people, they’d tell you there’s nothing wrong with the standard classroom set-up of a blackboard and chalk, or a whiteboard and dry-erase markers. Nicholas DePorzio isn’t most people, though. At Northeastern University’s Husky Startup Challenge Demo Day, he took home first prize for KrystalBoard, a liquid crystal-based writing board. His early prototype takes a few cues from Boogie Board’s line of scratch pads. Functionally, they’re almost identical: use a stylus to scratch your message into the panel then, when you’re done, simply press a button to erase it. What DePorzio believes sets his creation apart is the ability to scale to much larger sizes. His first prototype, tossed together in just six weeks, certainly has some rough edges (literally, the stand is made from roughly cut cardboard boxes). But, with a different selection of liquid crystal panels, the hope is that high-contrast classroom-sized KrystalBoards are well within his reach.