As a veteran teacher, one of my most requested forms is my class syllabus. This free download provides you with my ELA class syllabus, but since it is an editable PowerPoint file you can tailor it to suit any grade level or subject area. The template includes areas for course expectations, course information, class rules, class expectations, grading policy, absent work policy, etc.
Stop negative behavior in your classroom before it starts by reinforcing your expectations and recognizing positive student behaviors. With two simple tools, I successfully managed student behavior at the secondary level. A ticket system and "shout outs" are little to no cost, require little work for you as the teacher, and will encourage on task, positive behavior from your middle school and high school students.
Used these this year. These are the best- most clearly stated class rules I've ever had. We added "Be safe." to the bottom of it. "Let others learn." has solved a lot of other mini issues that always come up.