It's a brave gym coach who runs that detention hall.
Yeah, instead of just another Batman show rehashing the same old plots, the Gotham High concept would have given us Bane and Killer Croc dunking the Riddler's head in a toilet bowl while the Penguin acted as lookout.
Throwing out any semblance of continuity, the entire idea seems to be based on the observation that Batman villains can be categorized as goths, nerds, jocks and other high school stereotypes. According to the artwork, Batgirl is there too, so it's unclear whether they were also planning to include a preschool-age Robin.
Is it actually possible for him to be more of a whiny bastard?
We're suspicious of any high school that produces no fewer than 12 supervillains in one graduating class, but admittedly it does put an interesting spin on those Council of Doom meetings to think they're really just high school reunions.
As for the show, it didn't make it much further than the preliminary artwork and character design.