I discovered GNU/Linux works well in schools in 2000. Many other schools have found the same thing repeatedly:
“Low cost and the ease of management are the main advantages”
I remember one of the last laboratories I set up. It was constantly being unavailable to larger classes because XP was freezing. Rather than struggle with XP, I installed a GNU/Linux terminal server and brought the count of working PCs up to 24 from 14. I even dusted off some ancient wrecks and made them work as thin clients. I kept dropping in on that lab to see if there were any problems. There never were. It just kept working like the Engergizer Bunny.
That’s what schools want, not slavery to M$, lock-in, re-re-reboots, BSODs, phoning home, inventories of “certificates of authenticity” and threats of software audits. Life is just so much simpler with GNU/Linux. I recommend Debian GNU/Linux because of its huge repository of software and package management system.