* A misremembered or misspelled term: It's possible the term is a misremembering of another type of school, perhaps one focusing on special education or specific learning disabilities. Without more context, it's difficult to say for sure.
* An obsolete or very localized term: It's conceivable the term was used historically or in a very specific geographical area to describe a type of school, but it's not in common usage today.
* A newly coined or niche term: Someone might have recently created this term to describe a particular educational approach, but it hasn't gained widespread recognition.
If you encountered this term in a specific context (e.g., a book, article, family history), providing that context would be helpful in understanding its meaning.