Screening several times throughout the year, along with progress monitoring, provides insight into how students are responding to the instruction the teacher is providing. These screening calendars were created by us to provide a visual overview of WHAT and WHEN of reading screeners and data collection for K-3, and we are using them in our school right now. See chapter 2 in the book for more information about screeners and look in the back of the book for a list of some of our favourite screener