Grasping the structure of a subject is understanding it in a way that permits many other things to be related to it meaningfully. To learn structure in short, is to learn how things are related.

Grasping the structure of a subject is understanding it in a way that permits many other things to be related to it meaningfully. To learn structure in short, is to learn how things are related.

Good teaching is forever being on the cutting edge of a child's competence.

Knowledge is justified belief.

We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

The main characteristic of play - whether of child or adult - is not it content but its mode. Play is an approach to action, not a form of activity.

We are only now on the threshold of knowing the range of the educability of man-the perfectibility of man. We have never addressed ourselves to this problem before.