Summary strips are used at the end of class to summarize, identify key elements and condense important information that has been covered in class. This is a quick way to access student understanding as they walk out the door. Teachers are able to gather valuable information to help create more effective teaching in future lessons. This is in a PowerPoint format - just cut the strips and hand them out about 10 minutes before the end of the class period. Tell students to summarize a topic that was taught during class.