Classroom management seems to entail many aspects of the actual teaching environment. Educators have various definitions and many researchers feel that classroom management highly affects the extent of classroom behavior. Wikipedia, the leading user-contributed encyclopedia states that classroom management is a term used by many teachers to describe the process of ensuring that classroom lessons run smoothly despite disruptive behavior by students. The term also implies the prevention of disruptive behavior. It is possibly the most difficult aspect of teaching for many teachers and indeed experiencing problems in this area causes some to leave teaching altogether.