Answer: The author of this article urges students to observe the punctuation in newspapers, magazines, textbooks, etc. to understand the logic behind the punctuation and the variations that can occur with use of dashes, commas, semicolons, etc.
Comment: That’s real-world punctuation that might take the mystique out of it. RayS.
Title: “Punctuation: The Power and the Possibilities.” M Heveron-Smith. In Julie Gorlewski, Editor, “Research for the Classroom.” English Journal (March 2012), 101-103.