Take A Number From Rachelle Kean/Kuznik, an earth and space science teacher at Hempfield Area High School in Greensburg, Pennsylvania: "Instead of having students bombard me the first few minutes of class for work missed or other problems, I have a few numbered cards that students can take and go to their seat. They place the number on their desk signifying they need help with a matter NOT specifically related to that day's objective. I can see them at my leisure - it's like an appointment and there's no lost class time!"