Set clear and consistent expectations and rules for conduct. Non-compliance and defiance may arise from confusion or unreasonable expectations. Make sure that each and every student is aware of the rules and expectations of your classroom. Review these expectations in the classroom, the lunch room, the hallway, and on the playground. According to Paul Dix, this lets your students know that your expectations are consistent and apply all over the school, not just in the limited classroom setting.
Establish your authority and remind students who is in charge. Address the entire class, if possible, rather than individual students. Explain to them that you are in charge of the classroom and set the rules. If students disobey these rules, remind the entire class that compliance is expected. This will show students that not only are you in charge and expect compliance, but that you are not out to single-out and embarrass individual students -- who may then attempt to become even more defiant out of embarrassment or frustration.
Discipline quickly, simply, and quietly. When noncompliance and/or defiance occurs from an individual student, you'll need to address that student directly. As Paul Dix suggests, by giving students simple, clear reprimands in a discreet and stern way, you avoid lengthy arguments and public displays of disobedience or student backlash. This will also avoid embarrassing individual students and encouraging further problematic behavior.
Preempt defiance and noncompliance by creating trust among students and between you and them. Paul Dix offers two ways of doing this. First, this can be done by dividing classroom tasks, such as cleaning up or working on a project, amongst the students. This involves students in the running of the classroom and gives them a stake in the well-being of the group. Second, by building relationships with students by speaking with them casually and by identifying with their interests, you will demonstrate that you are interested in them and their development, not just interested in disciplining them -- this helps to build trust and respect.
If necessary, remove the disobedient and defiant students from the classroom, for a time. As a final step, some students may need to be removed from the classroom -- especially if their behavior is disrupting other students. In this case, students may be sent to wait in the hall, sent to the office to talk with the principal or guidance counselor, or, in extreme situations, sent home. Follow-up disciplinary measures may be required, such as suspension or a meeting with the student's parents.