Teaching can be a daunting endeavor for both experts and novice teachers. It is a profession that requires the ability to be responsive to new demands and changing needs. In recent years, school reform promoting high-stakes testing in the name of improving academic achievement has dominated the list of problems demanding consideration. The ability of teachers to organize classrooms and manage the behavior of their students is critical to achieve positive educational outcomes. This paper begins with a discussion of research related to the importance of effective classroom management. Next, it provides a conceptual framework of Classroom Management, the categories of troublesome behaviors, preventive measures and some practical advice for dealing with the kinds of troublesome situations that commonly arise. Finally, it outlines the recommendations for improving professional development efforts.