Persuasive Writing Through Book Reviews

I was trying to wrap my mind around how I could get my kinder students to write persuasively every day in an authentic way.  We started out by writing why we like different things and then giving a reason for that opinion.  We practiced this skill for a while.  From there, I created a book review form for the students to fill out.  Now every time they read a book that they think other students should read, they can fill out a book review form.  The books in our room will have a piece of paper sticking out of them if they have been given a review.  They students must rate the book.  They then write if they liked the book and the reasons why in the book review.  It has been a very fun and authentic way to get the students to write persuasively a couple of times a week.