The title is a reference to the long running BBC TV show Grange Hill about a school of that name.
The focus was on the school's only normal pupil, who was remarkably unfazed that his schoolmates included a vampire, a mummy, etc.
The full title was Eddie Potter at Strange Hill School.
By contrast, the Whizzer and Chips version featured a normal teacher, at a similar, but much more grotesque school.
Unlike the lead character in the DC Thomson strip, "Teach" found his sanity rapidly decaying as he faced his horrific pupils.