This post has 36 ways to decorate a classroom. Some of the ideas are decorative and practical, and some are just for show. However, they all help to create an open and friendly classroom environment and that is one of my main goals as an educator.
Modeled after the popular "Escape" games in many cities around the country, this classroom version prompts students to work together as a class to solve puzzles, connect the clues, and crack the code! This is a great activity for the first week of school to encourage teamwork and help students get to know each other and the classroom.