My twelve-year-old has OCD. His school recently issued a Chromebook to each student in secondary school. My son compulsively goes to Hangouts and his grades are suffering. I am working on getting the school to block Hangouts, but I have not been successful yet. While I'm working on that, I'd like to set up some sort of redirect, with perhaps a script, so that when he tries to visit Hangouts on the Chromebook while he's at school, the browser will automatically go to a different address (such as Google Classroom).
How can I do this?
(There's no point in trying to guide me through killing his google+ account. I've tried that. It refuses to die.)