The attached exercise is an active learning, collaborative activity. Students work in groups, each group analyzing a literary analysis resource (WorldCat, the MLA International Bibliography, Humanities International Complete, JSTOR, or Project MUSE) and reporting to the class on its findings. The goal is for each student to have a completely filled-out database resource sheet at the end of the activity.
Classroom Assessment Techniques by 
Snapshots of Reality by The links below connect you to several universities that have excellent descriptions and examples of CATS.