Back in the old days, teachers were right out front with things. Everyone was put in groups, A reading, B reading and C reading. Smartest in the A's. There was no testing for kids for learning disabilities, the class just coped with each other. Your hands were examined to see if they were dirty. If you bit your fingernails, it was annouced to the whole class. Everything was shared with class so behave your self or get embarrassed.
It worked. I went to school with the same kids for 13 years. No one grew up to be a serial killer or murderer.
Of course this was the 50's and 60's and what did they know about education. The teachers didn't really call us names, well, several times I was referred to as a brat which i was.