On the same basis is explicable the uniformity of method and curriculum. If everything is on a “listening” basis, you can have uniformity of material and method. The ear, and the book which reflects the ear, constitute the medium which is alike for all. There is next to no opportunity for adjustment to varying capacities and demands. There is a certain amount—a fixed quantity—of ready-made results and accomplishments to be acquired by all children alike in a given time. It is in response to this demand that the curriculum has been developed from the elementary school up through the college. There is just so much desirable knowledge, and there are just so many needed technical accomplishments in the world. Then comes the mathematical problem of dividing this by the six, twelve, or sixteen years of school life. Now give the children every year just the proportionate fraction of the total, and by the time they have finished they will have mastered the whole. By covering so much ground during this hour or day or week or year, everything comes out with perfect evenness at the end—provided the children have not forgotten what they have previously learned. The outcome of all this is Matthew Arnold’s report of the statement, proudly made to him by an educational authority in France, that so many thousands of children were studying at a given hour, say eleven o’clock, just such a lesson in geography; and in one of our own western cities this proud boast used to be repeated to successive visitors by its superintendent. I may have exaggerated somewhat in order to make plain the typical points of the old education: its passivity of attitude, its mechanical massing of children, its uniformity of curriculum and method. It may be summed up by stating that the center of gravity is outside the child. It is in the teacher, the text-book, anywhere and everywhere you please except in the immediate instincts and activities of the child himself. On that basis there is not much to be said about the _life_ of the child. A good deal might be said about the studying of the child, but the school is not the place where the child _lives_. Now the change which is coming into our education is the shifting of the center of gravity. It is a change, a revolution, not unlike that introduced by Copernicus when the astronomical center shifted from the earth to the sun. In this case the child becomes the sun about which the appliances of education revolve; he is the center about which they are organized.