I have spent a great deal of the last 7 years mastering the PWIM. My team was trained by Emily Calhoun. I think that  the PWIM is an excellent way to teach a language arts program. It is essential to learn how to infuse the think alouds, talk alouds for reading and writing into the subject areas. I made this Prezi as an introduction to PWIM. I will build on this and add photographs of a good PWIM cycle.