Growth mindset visuals. A Poster for students with alternatives and behavior reminders. This one is good, because it is not a "do this" don't do that" poster. It is recommendations for situations that may arise often in class such as being confused about a topic or feeling discouraged because they don't understand
10 Ways to Sabotage Your Classroom Managment: If you are having classroom management problems, take a look at this article, which explains what NOT to do, and the more effective practices you should try instead.