Education at school is about children learning. Children are different from one another and are likely to respond differently to different approaches and treatment. Any group of children, however homogeneous, is a collection of different and often very different, individuals. This is even more true in schools today than it was in the more distant past. A school may have children from a variety of cultures, speaking different languages and behaving in different ways from native British children. This development is making enormous demands on teachers.