The teacher should carefully study the disposition and character of his pupils, that he may adapt his teaching to their peculiar needs. He has a garden to tend, in which are plants differing widely in nature, form, and development. A few may appear beautiful and symmetrical, but many have become dwarfed and misshapen by neglect. Those to whom was committed the care of these plants left them to the mercy of circumstances, and now the difficulties of correct cultivation are increased tenfold. CT 231.3