These devices like the iPad are doing nothing more than turning children into dumbed downed spoiled brats. Confiscate and let them learn to solve mathematical problems, read a book and learn to write a decent composition using pen and paper. If they want to use a computer, sit them in front of one where you know you can easily manage. The iPads problem is, it was never designed as a multi-user device, its a personal device. iOS still doesn't have multi-user support yet. Apple I believe recently added support, but it still does not go the extra mile.
Finally, these are luxury devices, if the parents can't even afford them, don't get them hooked on using it at school then go home with temper tantrums to their parents balling for one. Sometimes, I feel these things are solutions looking for a problem. 10 to 15 years ago, when I was in school, when Steve Jobs, Bill Gates, Larry Ellison, Surgey Brin, Larry Page, Mark Zuckerberg were in school, they had to do without Tablets. They still ended being intelligent, successful people.
Here in Jamaica, the Tablets in schools program has turned out to be a disaster. Students immediately circumvented the security restrictions and started going on social media, downloading adult content.
Nothing beats the good old pen and paper. When they want a Tablet, let them go earn their own money and buy one.