Instructional Video
Khan Academy

Khan Academy: Three Ways to End a Sentence

9th - 10th Standards
David and Paige, KA's resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark.
Instructional Video
Khan Academy

Khan Academy: Semicolons and Complex Lists

9th - 10th Standards
We use semicolons to punctuate a complex list, which is when list items contain commas. For example, "I visited Paris, France; Paris, Texas; and Paris, Illinois." Paige explains.
Instructional Video
Khan Academy

Khan Academy: Hyphens vs. Dashes

9th - 10th Standards
In this video tutorial, the purposes and uses of "hyphens" and "dashes" are distinguished.