Battles with Integrity

First, there are many times when you are just working with a student or two, and something the size of a tablet would work fine for that, certainly better than a Touch. There's so much more real estate. Also, if you can do real-time mirroring from the iPad to a projection screen, it's something that all students can see. Plus something that size (I wouldn't mind a pc-style tablet computer at a more reasonable price, for that matter) is much easier to work with. There's a certain amount of direct concentration needed to manipulate a 3.5" diagonal screen.