We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
Types of Visual Aids and Their Uses 39
correspond, through the wiring, with the specimens mounted in the larger spaces.
The pupil, then, may take one of the two wires in each hand, place one on the nut at the corner of the specimen which is to be identified and with the other, search among the labeled nuts at the right for the names of that specimen. When the correct name has been found and the two free wires are placed on contact with the nuts, there will be light when the circuit has been completed.
The electric map has been found to be a valuable aid in learning the names of objects, specimens, pictures, etc., as well as an effective device for testing such knowledge. In testing, students should be rated according to the number of attempts or trials required before proper identification of each specimen.
Photographs and Prints
The first development of photography was a device for recording a still picture — an ordinary photograph. The photograph has been and remains one of the most readily accessible, economical, and effective of visual aids to instruction. It is abundantly available and extremely useful. Its effectiveness is attested by its extensive use in advertising, periodicals, newspapers, texts, and all other printed materials and exhibits which are designed to attract and inform.
Pictorial materials, such as photographs, prints, magazine illustrations, post cards, illustrations in travel literature, and the like, are so abundant and inexpensive that no teacher should be without a liberal supply, particularly for teaching the various phases of the social sciences. Magazines such as The National Geographic Magazine* and the various nature study and travel magazines contain illustrations which are carefully selected, accurately printed, and pertinent.
Teaching with Pictures. Pictures may be applied to teaching situations by the teacher or by the pupil. In many instances, the teacher will find a simple print to be much more effective in presenting a lesson than many minutes of discussion. The chief limitation of unprojected pictures is that they are difficult to use during a regular recitation period unless the teacher is fortunate enough to have one for each member of the class. Usually it is advisable to use single pictures during the study period, although fair results have been obtained by passing pictures from one pupil to another in an orderly manner.
* National Geographic Society, Sixteenth and M Streets Northwest, Washington, D. C.