Rules and examples to demonstrate proper use of apostrophes to show possession, form contractions, and make irregular plurals.

What is an apostrophe? Where are apostrophes found in writing? Use this website to learn more about these crazy little punctuation marks.

What is an apostrophe and how is it used properly in punctuation? "Punctuation Made Simple," gives some concrete examples for apostrophe use.

This is a 10-question, self-grading exercise/quiz on the use of Apostrophes.

This is a 10-question, self-grading exercise/quiz on the use of Apostrophes.

In this slideshow tutorial, the punctuation topic of "the apostrophe" is reviewed. Each slide provides a different purpose for using an apostrophe.

This lesson introduces apostrophes and how they are used. It is 9 of 13 in the series titled "Apostrophes."

This lesson explores common errors made with apostrophes and how to correct them. It is 3 of 3 in the series titled "Common Issues with Apostrophes."