To me, the crux of the issue of using devices in a classroom comes down to the culture of a specific classroom… is there a teacher at the front of the room sharing information and knowledge with an audience of students, or is there a collaborative environment (or something of a hybrid)?
This is written from a college professor’s point of view, but still valuable for k-12 educators and a good read (especially the elephant and elephant driver metaphor):
This is, for me, the biggest change — not a switch in rules, but a switch in how I see my role. Professors are at least as bad at estimating how interesting we are as the students are at estimating their ability to focus. Against oppositional models of teaching and learning, both negative—Concentrate, or lose out!—and positive—Let me attract your attention!—I’m coming to see student focus as a collaborative process. It’s me and them working to create a classroom where the students who want to focus have the best shot at it, in a world increasingly hostile to that goal.