CONCRETE MATERIAL
It is evident that concrete material must be provided and so distributed that each member of the class will have a direct opportunity to exercise his senses, and, from his observations, to deduce inferences and form judgments. The objects chosen should be mainly from the common things of the locality. The teacher should be guided in the selection by the interests of the pupils, first finding out from them the things upon which they are expending their wonder and inquiry. Trees, field crops, flowers, birds, animals of the parks, woods, or farmyard, all form suitable subjects for study.
TOPICS AND MATERIAL MUST SUIT THE SEASON
The material should be selected not only with reference to locality but also with due regard to season. For example, better Nature Study lessons can be taught on the elm tree of the school grounds than on the giant Douglas fir of British Columbia; and on the oriole whose nest is in the elm tree than on the eagle portrayed in Roberts' animal stories; and it is manifestly unwise to teach lessons on snow in summer, or on flowers and ants in winter.
MATTER MUST BE SUITED TO THE CHILD
For the urban pupil the treatment of the material must be different from that in the case of the pupil of the rural school. Rural school pupils have already formed an extensive acquaintance with many plants and animals which are entirely unknown to the children of the city. The simpler facts which are interesting and instructive to the pupils of the urban classes would prove commonplace and trivial to rural pupils. For example, while it is necessary to show the city child a squirrel that he may learn the size, colour, and general appearance of the animal, the efforts of the pupil of the rural school should be directed to the discovery of the less evident facts of squirrel life.
USE OF THE COMMONPLACE
It must be kept in mind that besides leading the pupils to discover new sources of interest, the teacher should strive to accomplish that which is even greater, namely, to lead them to discover new truth and new beauty in old, familiar objects. It may be true that "familiarity breeds contempt" and there is always a danger that the objects with which children have associated in early life may be passed by as uninteresting while they go in search of something "new and interesting".
For example, to be able to recognize many plants and to call them by name is no doubt something of an accomplishment, but it should not be the chief aim of the teacher in conducting Nature Study lessons on plants. It is of much greater importance that the child should be led to love the flowers and to appreciate their beauty and their utility. Such appreciation will result in the desire to protect and to produce fine flowers and useful plants, and this end can be reached only through intelligent acquaintanceship. There can be no true appreciation without knowledge, and this the child gets chiefly by personal observation and experiment. With reference to the wild flowers of the woods and fields, the method employed is that of continuous observation.