The CHAMPS classroom management system is used by thousands of school districts with much success. It is a proactive and positive system that clearly communicates desired behavior and expectations. Many classrooms post these expectations on the wall, but there is often too much information to be easily read, especially from a distance.
This is a set of posters (6 pages, each a standard 8.5x11" size). The expectations for time during Instruction, Test/Quiz, Group Work, and Individual Work are all on individual pages. In addition, there is one page for Every Day Expectations and another for general Class Rules. The phrasing is simple and the font size large and easy to read, so students can see the signs from across the room. I printed each page on differently-colored paper, and I often refer back to them to reinforce the expectations.
While these signs are based on the principals of CHAMPS, please note they are not CHAMPS posters. I took the CHAMPS guidelines, simplified them for ease of reading, and adapted them to suit my school and classroom.