- You may be looking for social class or the TV series.
In some contexts "class" was used as a synonym for "an education", to be educated, or in relation too where the education took place ie a classroom. (AUDIO: An Earthly Woman [+]Loading...["An Earthly Woman (audio story)"])
In 2007 Elton Pope recalled that Victor Kennedy's classes covered basic surveillance and espionage. (TV: Love & Monsters)