A rule of vital importance is that, before setting his pupils at work, the teacher should take them into the field of ideas wherein their work is to be done. He can accomplish this at the beginning of a recitation hour by means of a brief outline view of the ground to be covered in the lesson or lecture.

[78.] Instruction is to supplement that which has been gained already by experience and by intercourse with others ([36]); these foundations must exist when instruction begins. If they are wanting, they must be firmly established first. Any deficiency here means a loss to instruction, because the pupils lack the thoughts which they need in order to interpret the words of the teacher.

In the same way, knowledge derived from earlier lessons must be extended and deepened by subsequent instruction. This presupposes such an organization of the whole work of instruction that that which comes later shall always find present the earlier knowledge with which it is to be united.

[79.] Ordinarily, because their eyes are fixed solely on the facts to be learned, teachers concern themselves little with the ideas already possessed by the pupils. Consequently they make an effort in behalf of the necessary attention only when it is failing and progress is checked. Now they have recourse to voluntary attention ([73]), and to obtain this rely on inducements, or, more often, on reprimands and penalties. Indirect interest is thus substituted for direct interest, with the result that the resolution of the pupil to be attentive fails to effect energetic apprehension and realizes but little coherence. It wavers constantly, and often enough gives way to disgust.

In the most favorable case, if instruction is thorough, i.e., scientific, a foundation of elementary knowledge is gradually laid sufficiently solid for later years to build on; in other words, out of the elementary knowledge an apperceiving mass is created in the mind of the pupil which will aid him in his future studies. There may be several of such masses; but each constitutes by itself its own kind of one-sided learning, and it is after all doubtful whether even here direct interest is implied. For there is small hope that this interest will be aroused in the youth when the years of boyhood have been devoted merely to the mastering of preliminary knowledge. The prospects of future station and calling are opening before him and the examinations are at hand.

[80.] The fact should not be overlooked, however, that even the best method cannot secure an adequate degree of apperceiving attention ([75][78]) from every pupil; recourse must accordingly be had to the voluntary attention, i.e., the pupil’s resolution. But for the necessary measures the teacher must depend, not merely on rewards and punishments, but chiefly on habit and custom. Instruction unites at this point with government and training. In all cases where the pupil begins his work not entirely without compulsion, it is particularly important that he should soon become aware of his own progress. The several steps must be distinctly and suitably pointed out to him; they must at the same time be easy of execution and succeed each other slowly. The instruction should be given with accuracy, even strictness, seriousness, and patience.

[81.] The voluntary attention is most frequently demanded for memorizing, for which, apart from all else, the presence of interest is not always a perfectly favorable condition. This is true even of spontaneous interest, for the ideas that rise spontaneously have a movement of their own, which by deviating from the given sequence may lead to surreptitious substitutions. Like observation, intentional memorizing presupposes a certain amount of self-control. At this point a question arises as to the proper place of learning by heart.

Committing to memory is very necessary; use is made of it in every department of knowledge. But memorizing should never be the first thing except when it is done without effort. For if the memorizing of new matter, which the pupil cannot as yet have associated incorrectly, costs him an effort, it is plain that the single presentations encounter some opposition or other by which they are repelled too quickly for their mutual association to take place. The teacher must in this case talk the subject over first, set the pupil to work upon it, make him more familiar with it, and must sometimes even wait for a more opportune moment. Where clearness in single perceptions and their association ([67] et seq.) are still deficient, these must be attended to first of all. After the ideas have been strengthened in this way, memorizing will be accomplished more easily.

The assigned series should not be too long. Three foreign words are often more than enough. Many pupils have to be shown how to memorize. Left to themselves they will begin over and over again, then halt, and try in vain to go on. A fundamental rule is that the starting-point be shifted. If, for example, the name Methuselah is to be learned, the teacher would, perhaps, say successively: lah,—selah,—thuselah,—Methuselah.

Some have to be warned against trying to get through quickly. We have to do here with a physical mechanism which requires time and whose operation the pupil himself as little as the teacher should endeavor to over-accelerate. Slow at first, then faster.