I plan to use the book Interrupting Chicken by David Ezra Stein with my students to help teach and discuss Self-Discipline. I saw a similar poster to this online but couldn't find the source so I decided to create my own!
Cross out a number each time a student blurts or disrupts class enough to cause a scene :o) If all numbers are left or class still has some not crossed out, they get a reward (extra center time, first class to recess, etc.)
Chicken Clip Art: Hot Dog Digital Media
Font: KB Fonts Marker Factory
Border: Creative Clips