Classroom management is defined as the wide range of skills, strategies, and techniques that teachers use to ensure that their teaching is taking place smoothly and effectively.
Basically, the ultimate objective for any teacher is an academically productive classroom with attentive and engaged students. Unfortunately, even expert in-service teachers still find it hard to manage their classes under certain circumstances.
Even for teachers who consider themselves skilled classroom managers, things often change and can be hard for them. It all depends on the context and the nature of students.
But generally, classroom management is a continuous process and a part of a life-long process that makes teaching appealing and productive.