The main (literal) takeaway is that teachers can now confiscate phones.
Over here, at the other end of the Baltic sea, there's an ongoing debate about phones in the classroom and some schools have regulations in place regarding the use of electronic devices, but these are largely toothless as otherwise they would infringe on the right to property.
I graduated high school before the smartphone era, so I don't have much of a point of reference, but I'm leaning on disallowing at least Wi-Fi/mobile data - that's the largest source of distraction in my view.
My sister's friend brought a microwave oven once and started making grilled cheese sandwiches during recess. He was told to unplug and never bring it again, but it was not confiscated.
My classmate brought a super-sized calculator to class for tests, as he had a medical condition which allowed him to bring "a calculator". The buttons made a lot of noise but, again, it was not confiscated.
Over here, at the other end of the Baltic sea, there's an ongoing debate about phones in the classroom and some schools have regulations in place regarding the use of electronic devices, but these are largely toothless as otherwise they would infringe on the right to property.
I graduated high school before the smartphone era, so I don't have much of a point of reference, but I'm leaning on disallowing at least Wi-Fi/mobile data - that's the largest source of distraction in my view.