Since when is just being able to hold a student's attention 75% of the time entertainment? It's much more nuanced than my original comment, I understand, but the assumption that simply removing the device (which I agree is the way to go) will suddenly get kids involved in their learning doesn't take into account all the missteps that occur before the child or teacher enter that classroom. Whether it's staffing, fiscal planning at an admin level that reduces actual classroom instruction, lack of classroom management PD for staff that may need it or a permissive parent.