> Just today we did an activity where all the kids 'drew' a visualization of a certain math problem and then we passed the tablets around and added on top off them and then I showed the results on the projector. There was laughter, story-telling, kids helping each other, moving around the classroom, you name it.

I fail to see how this is something that couldn't be accomplished with paper And using the tablets half the time seems like wayy too much imo.