Many say that teaching is one of the most beautiful professions. Even though working with children brings great satisfaction, sometimes children’s playfulness, rebelliousness and problematic behavior can make working in a classroom more difficult. Teachers must then be calm, empathetic and, most importantly, competent in finding an appropriate way to de-escalate the situation without mayor interruption of the teaching process. The aim of this research was to examine the most common procedures and strategies used by teachers in elementary schools in dealing with inappropriate student behavior. While conducting the research, teachers' assessments of the seriousness of certain inappropriate student behavior, whether they work in classroom or subject teaching, and their work experience were taken into account. There were 230 elementary school teachers from all counties of the Republic of Croatia that participated in the research. For this research Physical Education Classroom Management Instrument – PECMI, which consists of 30 teacher’s strategies and procedures, was used. The results showed that there are statistically significant differences in the application of procedures and strategies depending on the type of inappropriate behavior, the teacher's workplace (classroom or subject teaching) and their years of experience. Classroom teachers are more inclined to apply positive measures and activities and agree with students to regulate their inappropriate behavior than subject teachers. Punishment procedures and removing students from class rarely occur in both classroom and subject teaching. Likewise, younger teachers more often use warnings and threats, involve peers and consult with other teachers and professional associates, than teachers with 15 or more years of work experience.