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Math Tools |
Record 1 to 15 of 15 |
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Abacus
"A tray strewn with dust or sand, used in ancient times for calculating. A contrivance for calculating, consisting of beads or balls strung on wires or rods set in a frame."—Wright, 1902... |
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Abacus
"Abacus is a Latin term applied to an apparatus used by the Chinese for facilitating arithmetical operations, consisting of a number of parallel cords or wires, upon which balls or beads are strung, t... |
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Abacus
An instrument for performing arithmetical calculations by means of sliding balls or counters.... |
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Bushel
A container used to measure a bushel.... |
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Bushel basket
Dry measure, Bushel basket... |
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Dividers
Hairspring dividers are for creating bisectors of circles. They are similar to a compass, but with two points and no pencil.... |
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Function Machine
A function machine template with room to enter the function, input, and output.... |
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Irregular Curves
"Curves other than arcs of circles are drawn with the pencil or ruling pen by means of curved or irregular-shaped rulers, called irregular curves. A series of points is first determined through which ... |
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Liquid measure
Liquid measure: gallon, quart, pint... |
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Napier's Rods
Special rods used for multiplication, division, and extracting square roots. ... |
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Pantograph
An instrument for making a reduced, enlarged, or exact copy of a plane figure... |
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Steel Square
Illustration of steel square.... |
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Steel Square
Illustration of steel square with hypotenuse drawn.... |
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Steel Square
Illustration of steel square with bevel/slant.... |
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Watkins's Factorial Calculator
An aluminum set of disks that correctly finds the time needed to develop photos in solution... |
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Clipart ETC is a part of the Educational Technology Clearinghouse and is funded by a grant from the Florida Department of Education, Office of Educational Technology. Produced by the Florida Center for Instructional Technology, College of Education, University of South Florida. Last update: 03/26/2007. Email the project manager.