The phrase "a narrow school of" is correct and usable in written English.
It can be used to describe a specific, limited perspective or approach within a broader field or discipline.
Example: "In the debate over climate change, there is a narrow school of thought that dismisses the urgency of the issue."
Alternatives: "a limited perspective of" or "a specific branch of".
Mr. Garfield takes a somewhat jaundiced view of Helvetica mania, but he hardly limits himself to one narrow school of fontificating.
Since she was too broad-minded to confine her pupils to the topics she herself explored, hers was not a narrow "Oxford school" of philology, but an academic family in which every member was allowed to pursue his or her own inclinations.
A global educational focus on standards and assessment, literacy and numeracy, has led to a narrowing of school curriculums and has seen an increase in the proportion of teenagers classified as "disengaged".
Since we worked with younger subjects in a narrow grade school range, the pattern of results we found concerning stress deserves further attention, especially with regard to its longitudinal evolution.
"There are a narrow set of schools where this happens all the time, and until that gets really unpacked and resolved, there's only so much that can be done to close the achievement gap," Sapp said.
It was a narrow, old-school, all-male slice of rock, with a hint of internationalism for starters: the rapper and singer K'Naan, who was born in Somalia and now lives in Canada (and whose band included a female keyboardist).
Joining with a narrow majority of the school board, he fought to prevent the district from collecting demographic data on the school population, viewing it as a first step toward establishing quotas, and turned down federal money meant to help the poorer minority students who were being bused in.
The consultants counter that they strongly advise parents against focusing only on a narrow range of prestigious schools.
"There is no good reason a low-income person should have a narrower range of schools or be compelled to attend a school for lack of income.
The strict Neo-Darwinians, as best embodied in the evolutionary archaeology school, accept a narrow interpretation of the Darwinian evolutionary model or what has been described as the "Hardened Synthesis" (Brooks 2011; Eldredge 1995).
