My absolute favorite book to use for teaching persuasive writing is "Hey, Little Ant." It is the perfect book for teaching persuasive writing. It takes the form of a debate between and ant and a little boy. The boy wants to squish the ant and argues why he should. The ant argues why the boy should let him go. The story ends with the little boy's shoe still up in the air and no decision having been made.
We read the story and then make a t-chart with reasons why the boy should and should not squish the ant. Then, I model ask the class who thinks the boy should squish the ant and who thinks the boy shouldn't squish it. Next, I will model completing a graphic organizer listing my opinion and three reasons. After I have modeled it, the students complete their organizers. Next, I model showing the kids how to write a persuasive paragraph arguing their point of view. Once the kids have written their paragraphs we hang it up with a cute shoe that they colored.
Some of the kids thought the boy should squish the ant.
Other students thought the boy shouldn't squish it.