History, in the broad sense, should be the chief constituent of a child's education. That subject-matter which contains the essence of moral culture in generative form deserves to constitute the chief mental food of young people. The conviction of the high moral value of historic subjects and of their peculiar adaptability to children at different ages, brings us to a positive judgment as to their relative value among studies. The first question, preliminary to all others in the common school course, "What is the most important study?" is answered by putting history at the head of the list.
Natural science takes the second place. In many respects it is co-ordinate with history. The object-world, which is so interesting, so informing, and so intimately interwoven with the needs, labors, and progress of men, furnishes the second great constituent of education for all children. Botany, zoology, and the other natural sciences, taken as a unit, constitute the field of nature apart from man. They furnish us an understanding of the varied objects and complex phenomena of nature. It is one of the imperative needs of all human minds that have retained their childlike thoughtfulness and spirit of inquiry, to desire to understand nature, to classify the variety of objects and appearances, to trace the chain of causes, and to search out the simple laws of nature's operations. The command early came to men to subdue the earth, and we understand better than primitive man that it is subdued through investigation and study. All the forces and bounties of nature are to be made serviceable to us and it can only be done by understanding her facts and laws. The road to mastery leads through patient observation, experiment, and study.
But we are concerned with the educational value of the natural sciences. Waitz says: "A correct philosophy of the world and of life is possible to a person only on the basis of a knowledge of one's self and of one's relation to surrounding nature." Diesterweg says: "No one can afford to neglect a knowledge of nature who desires to get a comprehension of the world and of God according to human possibility, or who desires to find his proper relation to Him and to real things. He who knows nothing of human history is an ignoramus, likewise he who knows nothing of natural science. To know nothing of either is a pure shame. Ignorance of nature is an unpardonable perversion." Kraepelin speaks as follows; "Instruction should open up to a pupil an understanding of the present, and thereby furnish a basis for a frank and many-sided philosophy of life, resting upon reality. But to the present belongs the world outside of us. Of this present there can be no such thing as an understanding unless it relates not only to inter-human relations but also to relations of man to animal, of animal to plant, and of organic life to inorganic life. The necessity of assuming a relation to our environment is unavoidable and this can only be done by acquainting ourselves with the surrounding world in every direction. This requirement would remain in force though man, like a god, were set above nature and her laws. But man lives, acts, and dies not outside of, but within the circle of nature's laws. This maxim is axiomatic and contains the final judgment against those who claim that a comprehensive but unified philosophy of life is possible without a knowledge of nature." Herbart says: "Here (in nature) lies the abode of real truth, which does not retreat before tests into an inaccessible past (as does history). This genuinely empirical character distinguishes the natural sciences and makes their loss irretrievable. It is here (in nature) that the object disentangles itself from all fancies and opinions and constantly stimulates the spirit of observation. Here then is found an obstruction to extravagant thinking such as the sciences themselves could not better devise." Ziller says: "The natural sciences are necessary in education because from the province of nature (as well as from history) are derived those means and resources which are necessary to accomplish the purposes of the will in action. Means and forces are the natural conditions for the realization of aims. Without knowledge of and intelligent power over nature, it is difficult to realize that certain aims are possible; action cannot be successful; will effort, based upon the firm conviction of ability, that is, judicious exercise of will, is impossible." We quote also from Professor Rein: "Let us observe in passing that in the great industrial contest between civilized nations, that people will suffer defeat which falls behind in the culture of natural science, and for this reason the motive of self-protection would demand natural science instruction. In favor of this teaching, the claim is further made that no science is so well adapted to train the mind to inductive thought processes as that which rests entirely upon induction, and that natural science study is in a position to resist more easily and successfully than all other studies, the deeply-rooted tendency in all branches to substitute words for ideas."
Rein (das vierte Schuljahr) explains further the leading ideas and standpoints which have appeared in historical order among science teachers in the common school. From the first crude ideas there has been marked progress toward higher aims in science teaching.
1. Natural history stories for entertainment. Many curious and entertaining facts in connection with animal life were searched out, more especially unusual and spicy anecdotes of shrewdness and intelligence. Some of the old readers, and even of the recent ones, are enriched with such marvels.
2. Utility, or the study of things in nature that are directly useful or hurtful to man. Whatever fruits or animals or herbs are of plain service to man, as well as things poisonous or dangerous, were studied because such information would be of future service. It was a purely practical aim, at first very narrow, but in an enlarged and liberal sense of much importance.
3. Training of the senses and of the observing power. By a study and description of natural objects, sense perception was to be sharpened and a habit of close observation formed. Among science teachers today no aim is more emphasized than this. It also stores away a body of useful ideas of great future value. This is an intellectual aim that accords better with the purpose of the school than the preceding.
4. Analysis and determination of specimens. To examine and trace a plant, mineral, or insect, to its true classification and name, has occupied much of the time of students. It requires nice discrimination, a comprehensive grasp of relations, and a power to seize and hold common characteristics. Many of our text-books and courses of study are based chiefly upon this idea.
5. System-making, or the reduction of all things in nature to a systematic whole, with a place for everything. Some of the greatest scientists, Linnaeus, for example, looked upon scientific classification as the chief aim of nature study. It has had a great influence upon schools and teachers. The attempt to compress everything into a system has led to many text-books which are but brief summaries of sciences like zoology, botany, and physics. Scientific classification is very important, but the attempt to make it a leading aim in teaching children is a mistake.
We may add that nature study is felt by all to offer abundant scope to the exercise of the esthetic faculty. There is great variety of beauty and gracefulness in natural forms in plant and animal; the rich or delicate coloring of the clouds, of birds, of insects, and of plants, gives constant pleasure. Then there are grand and impressive scenery and phenomena in nature, and melody and harmony in nature's voices.