Are you considering using a clip chart to provide students with a visual to monitor their behavior? This owl-themed clip chart with do the trick! Have students start their day on "Ready to Learn" and then clip up to "Great Day" or "Outstanding" for making great choices.
If necessary, I have students clip down to "Warning" and always give them the option to earn their way back up by making better choices. They can also clip down to "Think it Over," where I have my students fill out a reflection. "Teacher's Choice" is the most extreme negative included. This could be anything from losing a privilege to parent contact.