We've been doing a lot with FIP (Formative Instructional Practices) in our district. One of the ideas presented many times during our last PD day was exit tickets. My students have been self-evaluating all year on different skills/tasks, but I've never actually tried an exit ticket with them. Back in my third grade days, its been 8 years, I would have used exit tickets in a second, but I didn't really think to try them in kindergarten.
I knew that if I had something visual, I would be more likely to use them. I purchased some fun library pockets, numbered them, and passed them off to my student teacher to create a display.
While students do not yet have the author's purpose concept down, they seem to really want the purpose to be "to persuade", they did an awesome job with the exit tickets. I loved the opportunity for them to show what they know in an informal way.
Do you use exit tickets in your room? How do they work for you?