I wasn’t proposing “BYOD” – I was just pointing out the differences between the brave new world of Technology in the Classroom and the very limited though valid use case you brought up.
Your point is ignoring the actual argument I am making, which is that “Technology in the Classroom” leads to even more students that don’t listen in class than we would otherwise have.
She wasn’t allowing them – she didn’t realize that with that particular class she would have to go through the time and trouble (~5 minutes or more of classtime lost every day) of collecting their phones at the beginning of class. The reason for this is partially because she had a different section of the same class that didn’t have these same struggles – those kids could handle the temptation.
(Not foolproof by the way. I’ve heard of kids bringing two smart phones so that when the teacher collects one they can keep using the other.)
As far as seeing the kids use the smart phones when they should have been listening – kids are actually pretty good at figuring out how to get away with stuff. They hold it behind the desk where the teacher can’t see it and glance down at it when they’re pretty sure the teacher isn’t looking.
“Calling them out on it” doesn’t do much to make them actually stop using it. They often put it away and then take it out again when the teacher isn’t looking. Or in some cases just not put it away because it’s not like there’s much a teacher can do to make a student do something he or she doesn’t want to do.