Love To Know Media
Your Dictionary: Teaching Plural Possessives
This site focuses on teaching plural possessive nouns and pronouns including what they are and methods of teaching them including using flashcards, and plural possessive Bingo, Wheel of Fortune, and Jeopardy.
Other
Bellevue Community College: Apostrophes [Pdf]
Resource explains the three uses of the apostrophe and provides examples. Requires Adobe Reader. [PDF]
Capital Community College Foundation
Guide to Grammar and Writing: The Apostrophe
What is an apostrophe? Where are apostrophes found in writing? Use this website to learn more about these crazy little punctuation marks.