The truly wonderful transformations in character that have been worked in girls and in boys by means of well-organized play have taught us the moral value of team-work for the older children. In these games, which come at a period when the child has already acquired considerable skill and strength, the chief interest is in doing the best for the team, so that the individual learns the importance of subordinating himself to a common purpose. He learns the joy of contributing his best to his "side" without considering his individual glory or gains. In this way he acquires that negative but very important side of self-control which consists in the ability to _avoid_ doing what the impulse would drive him to. He learns also the importance of dreary drudgery, in his practice work, for acquiring special skill, and a boy will spend hours in such dull practice, animated by the desire not to excel some other individual, but by the desire to help his team win. He learns not only to take his place in the game, but to judge his companions by their special ability and by their value to the group, rather than by clothes or personal feelings or other outward and incidental facts. All these things the team game teaches as no mere _instruction_, whether in school or home, can teach. We have learned from the results of these play activities with all kinds of children in the city and in the country, of rich and of poor, that the spirit of the game is not only capable of stimulating the growing boy and girl to a tremendous amount of exertion, but also of organizing his or her feelings and ideals into effective moral and social standards. And when the same spirit is applied to work, we can get the same valuable educative results, with the addition of a higher appreciation of work as work than usually comes from an early experience with doing necessary but disagreeable tasks. For example, in one city the shop work of classes of boys was organized on a cooperative basis. The boys worked in teams for the making of desks or cabinets. The results, as measured by finished product or by the quality of the workmanship, were far ahead of what the same instructors could get from the same boys when the attempt was made to stimulate the workers by means of prizes and individual rewards. Children can learn to work together as well as to play together. If you have noticed that two workers very often do half as much work in a given time as one worker, it is because they have not learned to work together--they have been denied the opportunity of learning this, and now take occasion, when they do get together, to do almost everything but work.