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Types of Visual Aids and Their Uses 31
"Pages are required to set forth the principles of an engine or motor. The miniature model, amplified with pictorial material, gives a correct representation of the thing and enables the pupils to see the relationship of its various parts. We too often take a considerable period of time to describe verbally or through the printed page a relationship which could be portrayed more accurately and vividly in half or a quarter of the time by means of the natural setting, environment, situation, object, specimen, model, or picture. Only actual tests of the use of these aids are needed to convince the teachers of their value."
The School Museum
One of the primary requirements of the successful use of visualsensory aids is that the materials shall be available for use at the time they are needed in the classroom. For this purpose, the school museum becomes almost a necessity in every school system or school unit. Many are inclined to think of a museum as a place where unusual specimens are stored behind glass doors, to be viewed occasionally and to gather dust and other signs of age. On the contrary, the school museum can and should become the most useful service unit in any school.
The requirements for a school museum are simple. Some space is needed, and the space should be easily accessible to all teachers. A part time or student clerk is needed to check materials as they go out and as they return. Aside from these requirements, ordinarily available in any school, there should be an interest in more effective teaching. In most instances, the pupils will do, with enthusiasm, the major part of the work required in collecting and preparing specimens.
The school museum should provide space for the object-specimenmodel collection of the school, except possibly those items which are peculiarly adapted to the use of the teacher in one section or room. It should provide space, also, for posters, picture collections, industrial exhibits, special exhibits, glass slides, filmslides, and such motion pictures as may be owned by the school. In addition, the school museum service might be called upon to handle the circulation of projection equipment, screens, phonographs and phonograph records,, reference books and the like. In many instances the school library staff will be able to take care of the school museum service.
There are many sources from which desirable exhibit materials may be secured, at little or no cost. Industrial organizations of