The problem is I'd have to get a tablet too. I haven't looked into whiteboards yet, so it still might be cheaper. Of course, I might also just take my laptop to my classroom and use that one.
I got a nav tablet for $80 (bamboo wacom) and it worked great for a year before the usb leads came loose. Look for smth in the $120~~ range and you will save on buying a whiteboard (which has a singular purpose). Keep in mind, I invested for art, but found much more versatility.
And/or secondhand is a viable option. That bamboo can also be set up wirelessly with a wireless chip and a rechargable batt. That's what I did when the usb connector failed.
