Section 15.11 Chapter Summary
This chapter covered punctuation as a system that encodes grammatical structure in writing. The key points are:
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Sentence boundaries: Four options for joining independent clauses—period (full separation), comma + coordinating conjunction (compound sentence), semicolon (close relationship), and colon (anticipation). A comma alone between independent clauses is a comma splice.
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Commas mark introductory elements, items in a series, coordinate adjectives, and nonrestrictive modifiers. They do not separate a subject from its verb.
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Semicolons join closely related independent clauses and separate items in complex series where items already contain commas.
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Colons introduce lists, explanations, and quotations after a complete independent clause.
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Apostrophes mark possession and contractions. Key distinction: its (possessive) vs. it’s (contraction).
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Dashes, commas, and parentheses set off parenthetical material at different emphasis levels: dashes are loud, commas are neutral, parentheses are quiet.
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Quotation marks enclose direct speech and titles of shorter works. Periods and commas go inside (American convention); question marks depend on who is asking.
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Syntactic vs. rhetorical punctuation: This textbook follows the syntactic approach—learn the structures and the punctuation follows—but both overlap in practice.
