The keyword phrase "September 11th for elementary students" functions grammatically as a noun phrase. It operates as the subject or topic of the article. The core of the phrase is the proper noun "September 11th," which is specified and narrowed by the subsequent modifying phrase to define the article's specific focus.
A grammatical breakdown shows that "September 11th" is a proper noun acting as the head of the phrase. The section "for elementary students" is a prepositional phrase that functions adjectivally. It modifies the proper noun by specifying the context and intended audience. "For" is the preposition, and the noun phrase "elementary students" (an adjective modifying a noun) is the object of the preposition. This structure answers the question, "Which version or discussion of September 11th is this about?"
Identifying the keyword as a noun phrase is critical because it establishes that the article's main point is the concept itself. The article's purpose is therefore expository: to explain, define, or describe the subject named by the phrase. The central theme is providing information about September 11th in a manner specifically adapted for elementary students, making the topic itself the primary focus.
