'Declarative Knowledge' in learning grammar refers to ________.

Declarative knowledge is 'knowing THAT' — knowing facts, rules, and principles. In grammar, declarative knowledge means knowing the explicit rules (e.g., 'add -s to verb for third person singular present'). It contrasts with procedural knowledge — 'knowing HOW' — the ability to actually use the grammar fluently in production. Hence declarative grammar knowledge = knowing the rules of a grammatical item.