This theory states that teachers were responsible for the classroom and had the right to teach without interruption. An assertive teacher should be firm with structure, rules, procedures and routines. Canter's theories work best when implemented on the first day of class. The rules and consequences will be clearly discussed with the student so that each person abides by the given rules. The regulation will also be given to parents to sign and return it the following day. This will develop a sense of responsibility in learning and correct behavior