My highschool served a metric fuckton of kids, 2,000 kids, 9th-12th grade yet at one point couldn't afford paper. A couple of my teachers didn't even fully understand the subject they were teaching, my math teacher was constantly being corrected by the students who actually knew what they were doing. My graduating class was almost 800 kids, ~400 actually graduated.
Not so much related to the education, but a general rule of thumb was to carry popcorn with you because there was always a fight going on and occasionally students would throw their desks at a teacher.
Fun fact: the current head of the EPA graduated from that school. Nothing good comes out of that school.
Not so fun fact: he named it that because he's a dick and thought it was funny to hear asian people try to pronounce that many "L's"
https://www.snopes.com/fact-check/lululemon-name-difficult-japanese/