The question of his symbolism, and its relations to mathematics, logic, etc., is important.

And finally, the sphere of the pupil's _expression_ in all its forms.

Then, from all his discoveries in these things, the teacher is called upon to make his method of teaching and his general treatment suitable to this student.
The visual pupil usually shows himself to be so predominately in his speech and language functions; he learns best and fastest from copies which he sees.

He delights in illustrations put in terms of vision, as when actually drawn out on the blackboard for him to see.

He understands what he reads better than what he hears; and he uses his visual symbols as a sort of common coin into which to convert the images which come to him through his other senses.