Generally such a person, child or adult, is said to "jump" at conclusions; he is anxious to know in order to act; he acts in some way on all events or suggestions, even when no course of action is explicitly suggested, and even when one attempts to keep him from acting.
Psychologically such a person is dominated by habit.

And this means that his nervous system sets, either by its hereditary tendencies or by the undue predominance of certain elements in his education, quickly in the direction of motor discharge.

The great channels of readiest out-pouring from the brain into the muscles have become fixed and pervious; it is hard for the processes once started in the sense centres, such as those of sight, hearing, etc., to hold in their energies.

They tend to unstable equilibrium in the direction of certain motor combinations, which in their turn represent certain classes of acts.

This is habit; and the person of the extreme motor type is always a creature of habit.
Now what is the line of treatment that such a child should have?
The necessity for getting an answer to this question is evident from what was said above--i.