Mensa for Kids provides a number of lesson plans to guide students through the screenwriting process, from evaluating the makings of a good screenplay to various techniques students can employ to make their script really sing…or maybe even sell.
This book makes good on its promise - this is the last book on screenwriting you will ever need. Not only that, but it is simplified in such a way that young adults can comprehend and benefit from it, as well. Snyder offers the tips and tricks he gleaned along the way, including a number of excellent pre-writing strategies which only seek to strengthen students' story ideas before they ever start writing their actual stories.
I have written a number of screenplays throughout my writing career. None of them have sold (yet), however, my writing changed exponentially for the better when I started using the Blake Snyder Beat Sheet to outline my screenplay ideas before ever putting fingers to keys. I have encouraged my students to do the same, and their stories were well-thought out and better for it.