Dr. Montessori’s Own Handbook

The functions to be established by the child fall into two groups: (1) the motor functions by which he is to secure his balance and learn to walk, and to coordinate his movements; (2) the sensory functions through which, receiving sensations from his environment, he lays the foundations of his intelligence by a continual exercise of observation, 7 comparison and judgment.

As the child’s body must draw nourishment and oxygen from its external environment, in order to accomplish a great physiological work, the work of growth, so also the spirit must take from its environment the nourishment which it needs to develop according to its own “laws of growth.”

(1) the motor functions by which he is to secure his balance and learn to walk, and to coordinate his movements; (2) the sensory functions through which, receiving sensations from his environment, he lays the foundations of his intelligence by a continual exercise of observation, 7 comparison and judgment. In this way he gradually comes to be acquainted with his environment and to develop his intelligence.