Protractors - School

Although protractors began to appear in practical geometry textbooks in the 18th century, it was not until the turn of the 20th century that they were used systematically in mathematics teaching in American schools. Some protractors were small and inexpensive, intended for purchase and use by individual students. These might be made from new materials, such as plastic. Other protractors for educational use were oversized, designed for teachers to provide demonstrations of concepts at the blackboard. Two protractors in the collection were manufactured in Japan and displayed at the 1876 World's Fair to help demonstrate the modernization of education in that nation.
"Protractors - School " showing 2 items.
Japanese Protractor, 1876 World's Fair
- Description
- The Japanese Empire Department of Education displayed this circular brass protractor at the 1876 World's Fair, the Centennial Exposition in Philadelphia. A notch for accessing the origin point is cut into the fourth quadrant of the crossbars spanning the diameter of the protractor. The protractor is marked every thirty degrees in the clockwise direction with Japanese characters for the twelve animals in the Chinese zodiac: mouse, cow, tiger, rabbit, dragon, snake, horse, sheep, monkey, chicken, dog, and boar. The top of each symbol faces the center of the protractor.
- The government of Japan aimed to demonstrate its nation's modernity and progress. In fact, Japan's Department of Education had just been established in 1870 to replace an Educational Board and to assume a more active role in the management of primary, middle, and secondary schools. John Eaton, the U.S. Commissioner of Education, arranged for the transfer of the entire exhibit in which this protractor appeared to the Bureau of Education (then part of the Department of the Interior) for a planned museum. The museum closed in 1906 due to high maintenance costs, and much of the collection was transferred to the Smithsonian in 1910. No information about the maker of this protractor is known.
- See also ID Number MA*261306.
- References: Japan, Department of Education, An Outline History of Japanese Education: Prepared for the Philadelphia International Exhibition, 1876 (New York: D. Appleton, 1876), 121–122, 191–202; U.S. Centennial Commission, International Exhibition, 1876. Reports and Awards, ed. Francis A. Walker (Washington, D.C.: Government Printing Office, 1880), viii:143, 335; U.S. Bureau of Education, Annual Report of the Commissioner (1876), ccxi–ccxii.
- Location
- Currently not on view
- date made
- 1876
- ID Number
- MA*261305
- accession number
- 51116
- catalog number
- 261305
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Japanese Protractor, 1876 World's Fair
- Description
- This brass circular protractor is divided by single degrees and marked every thirty degrees in the clockwise direction with Japanese characters facing outwards and representing the Chinese zodiac: mouse, cow, tiger, rabbit, dragon, snake, horse, sheep, monkey, chicken, dog, and boar. Four arms extend toward the center of the protractor and meet around an open circle 3cm in diameter. The circle is open, except for a protrusion containing a pinhole at the origin point.
- The Japanese Empire Department of Education assembled an extensive exhibit of books, reports, examinations, maps, photographs, paintings, classroom equipment, medical apparatus, and drawing instruments for the 1876 World's Fair, the Centennial Exposition in Philadelphia. Five types of protractors were included in the display, two of which survive in the Smithsonian's National Museum of American History.
- See also ID Number MA*261305.
- Location
- Currently not on view
- date made
- 1876
- ID Number
- MA*261306
- accession number
- 51116
- catalog number
- 261306
- Data Source
- National Museum of American History, Kenneth E. Behring Center

