A while back, Shimer was planning to refurbish its classrooms, and they asked the faculty whether they preferred chalkboards or dry-erase boards. I put in an impassioned plea to retain chalkboards, though I was sadly overruled in the end.
In my view, chalkboards are the more robust technology, precisely because of their simplicity. Indeed, it is unclear to me what practical advantage dry-erase boards could possibly have. Markers dry out remarkably quickly, and it’s all too easy to confuse a dry-erase marker with another kind, potentially permanently damaging the board. You need specialty chemicals to clean it, and using water can damage it and make it more difficult to clean in the future.
Obviously chalk boards require maintenance as well, but virtually every dry-erase board I have ever used, other than ones that were literally brand-new, has been in terrible condition. I’ve routinely been in classrooms with no markers or dead ones, whereas I’ve almost never been in a classroom that was completely out of chalk.
I understand the seduction of a new technology, but we as educators have decades of experience with the pitfalls of dry-erase boards. Why do we put up with it? Why don’t we agitate for a return to the old familiar regime of chalkboards, which has served us so well for centuries?
The only explanation I can think of is that businesses prefer dry-erase boards, and universities are imitating corporate fashions. Further, I speculate that businesses initially preferred dry-erase boards precisely because they didn’t have the baggage of academia. So basically, we’re imitating the shitty technology of people who hate us, and we aren’t even doing a good job of it.