Probably one of the greatest aids to living teaching is the skilful use of various kinds of illustration. The skill of the teacher in many cases lies in getting the children to realize they need the description and so to attend to it. The most important type of questions that a teacher should use is that used to rouse the children to further and more careful thought. Every story has its own 'atmosphere' that, though hard to explain verbally, must be felt by the teacher and suggested to the class. The story-teller and the teacher must make the greatest possible use of any power of imagery with which they are endowed. If there is not the story-teller's art, then narration is a dull and barren method and the class only listens when it must. A good history teacher must acquire the power no less than the teacher of literature or geography, and practice alone gives it.