SAFE-T Protractor™ 45779 Oversized Blackboard Protractor, Vintage Circa 2000s
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The humble protractor. A simple yet essential tool used in geometry, engineering, art and design to measure and draw angles. It is a mathematical drawing instrument with a long history of applications in navigation, surveying, engineering and war. Protractors are fundamental in: Mathematics and Geometry to measure angles in triangles, polygons and other shapes. Engineering and Architecture to ensure precise measurement in blueprints and construction. Art and Design to create accurate proportions and symmetry in drawings.
This oversized protractor is aimed at making science and math more engaging for students. A classroom tool for teachers to inspire their students to connect with science, art and real-world applications. This large classroom protractor is visible from every seat in the classroom. Works on dry erase boards and blackboards for easy corrections. A semi-circular design, marked in degrees from 0 to 180. Dual scales, an inner scale runs counterclockwise from 0° to 180° and an outer scale that runs clockwise from 0° to 180°; the base is a straight edge with an oversized ruler, the center is the midpoint of the base. NOTE: All scales/measurements are oversized.
The exaggerated size makes for a cool vintage object to decorate an architect or engineer's office or the room of a child who is enthusiastic about science and math.
Fun Fact: There is a SAFE-T Protractor™ #45779 preserved in the Smithsonian National Museum of American History
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