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Organizing the AudioVisual Service 191
sound is becoming standard in speech and music departments as well as in orientation and guidance programs. Many training schools attached to teacher-training institutions make use of all types of audiovisual aids, thus providing the appropriate training for the prospective teacher who will be expected to use these aids as soon as she completes her training and enters the teaching field.
Applying Audio-Visual Aids to Special Fields
It is unnecessary to discuss at length the possible adaptation of different types of visual aids to instruction in the subjects of the school curriculum. Those who are teaching will recognize at once materials which seem to serve best in their specific fields. There is a wealth of material for use in teaching social sciences. Certainly there is no more effective way to give an impression of life in another part of the world than to bring into the classroom exhibits, specimens, models, photographs, slides, motion pictures, and recorded music of the places and peoples of that section. There are many excellent motion pictures of habits and customs among peoples in all parts of the world.
In the linguistic studies, pictures are being used extensively as a foundation for language training. The Society for Visual Education has prepared a series of filmstrips, "An Introduction to Spanish," which relates words to pictures effectively. Many language teachers are finding it much easier to teach fundamental vocabularies by using both individual and projected pictures which are identified by the use of appropriate words. Furthermore, some teachers use these same materials as a testing device. There are some who have a feeling that language studies can be facilitated considerably by preparing animated pictures of root words, endings, prefixes, and so forth, to fix the combinations in the minds of the students. Again the phonograph record assumes an important role by bringing to the classroom, inexpensive illustrations of Spanish, French, Italian, German, Russian, and other languages which are thoroughly accurate in enunciation and pronunciation. The short-wave radio-receiving sets also make it possible for language teachers to bring all types of foreign programs into the classroom.
There are unlimited possibilities for the use of concrete materials of all types in the fields of science, including biological, physical, and general science. Perhaps the majority of the teachers in these fields have been using some forms of visual aids regularly for the past several years. However, the newly developed microscopic, animated, stopmotion, and slow-motion pictures of life forms in their natural sur