Back in the day, did frum Jews really go to school on Shabbos?
To judge favorably, I presume that the learning was Shabbos related, everyone walked to school which was right around the corner by the shul (maybe parents were at shul, and the learning was not weekday related.
“We used to go to school even on Shabbos (no pens, pencils, etc. Just learning)” by squeak 7yrs ago
http://www.theyeshivaworld.com/coffeeroom/topic/should-there-be-vacation-during-channukah