This is a quick lesson to do on the first day on grammar. I would suggest beginning the lesson with the Wierd Al music video "Grammar Crimes" http://www.youtube.com/watch?v=8Gv0H-vPoDc. Then have the students read the article. Following the article are 8 questions for the students to answer. I usually have them work in small groups to answer the questions and then have a short discussion.
*note that there is no answer key with this lesson as the answers to the questions will vary.