Ah, passive voice...the bane of every beginning writing student. While not technically wrong, we know that passive voice slows down writing, and generally encourages wordiness, even though it often can be easily avoided.
This worksheet is intended to help students understand what passive voice is, and learn to correct it. A two-page exercise begins with an explanation and illustration of what passive voice is. Students then move through three different exercises, beginning with identification, then moving to correction of sentences and a brief paragraph. Goofy examples and sentences help to entertain students and maintain interest.
This sheet can be used as homework, or as an in-class activity. (I often begin in class, then have students finish for homework if we did not get a chance to complete and discuss all parts.)