school grammar
General term for grammar as taught in schools, often contrasted with linguistic or descriptive grammar.
In school grammar, adjectival nouns are treated as an independent part of speech.
Japanese school grammar; traditional Japanese grammar system
Specifically the prescriptive grammar system used in Japanese education and many dictionaries, based on Hashimoto Shinkichi's framework.
日本語教育では、学校文法ではなく日本語教育文法が使われることが多い。
In Japanese language teaching, pedagogical grammar is often used rather than traditional school grammar.