My "go-to" pre-writing strategy for expository and persuasive writing is something called the What-Why-How (W-W-H). As my students and I enter 2nd term and we've had time to finish a few different books, I introduce them to persuasive writing by showing them how to write book reviews using the W-W-H.
The What-Why-How as a Reading Tool
Before we begin writing our own book reviews, we take a look at some book reviews from the web along with a few book reviews former students have written. On the white board, I set up a What-Why-How like the one seen in the picture here. In the first column, I write the question: What does the writer think of this book? In the second column, Why does the writer think this book is worth reading? In the third column, How does the writer know this book is worth our time?