1. =Through Physical Activity.=--It is a characteristic of the young child to enjoy physical activity for the sake of the activity itself. This is true even of his earliest acts, such as stretching, smiling, etc. Although these are merely impulsive movements without conscious purpose, the child soon forms ideas of different acts, and readily associates these with other ideas. Thus he takes a delight in the mere functioning of muscles, hands, voice, etc., in expressive movements. As he develops, however, on account of the close association, during his early years, between thought and movement, the child is much interested in any knowledge which may be presented to him in direct association with motor activity. This fact is especially noticeable in that the efforts of a child to learn a strange object consist largely in endeavouring to discover what he can do with it. He throws, rolls, strikes, strives _to_ open it, and in various other ways makes it a means of physical expression. Whenever, especially, he can discover the use of an object, as to cut with knife or scissors, to pound with a hammer, to dip with a ladle, or to sweep with a broom, this social significance of the object gives him full satisfaction, and little attention is paid to other qualities. For these reasons the teacher will find it advantageous, whenever possible, to associate a lesson problem directly with some form of physical action. In primary number work, for example, instead of presenting the child with mere numbers and symbols, the teacher may provide him with objects, in handling which he may associate the number facts with certain acts of grouping objects. It is in this way that a child should approach such problems as: How many fours are there in twelve? How many feet in a yard? How many quarts in a peck? etc. The teaching of fractions by means of scissors and cardboard; the teaching of board measure by having boards actually measured; the teaching of primary geography by means of the sand-table; the teaching of nature study by excursions to fields and woods; these are all easy because we are working in harmony with the child's natural tendency to be physically active. The more closely the lesson problem adjusts itself to these tendencies, the greater will be the pupil's activity and hence the more rapid his progress.