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Math Tools |
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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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Abacus A Chinese abacus used to calculate numbers.... |
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Abacus, Chinese Two Chinese men use the abacus to calculate for their business. "The abacus was one of the earliest aids to calculation." -Hill, 1921... |
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Balance Scale An illustration of a balance scale.... |
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Bushel A container used to measure a bushel.... |
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Bushel The bushel, a unit of dry measure.... |
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Bushel basket Dry measure, Bushel basket... |
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Bushel, Winchester An illustration of a Winchester bushel measuring container. A bushel is a unit of dry volume, usually subdivided into eight local gallons in the systems of Imperial units and U.S. customary units. It... |
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Calculator, Factorial An aluminum set of disks that correctly finds the time needed to develop photos in solution... |
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Caliper A caliper used for measuring the diameter of a circle.... |
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Capacity "To find the number of bushels of grain in a bin or box, multiply the length in feet by the height in feet, then by the width in feet and then by 8. For instance. In a bin 10 feet long, 6 feet high an... |
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Capacity, Comparison Of Units Of Illustration comparing the fundamental units of measure quart and liter.... |
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Chondrometer A chondrometer is a measuring tool used for weighing seed.... |
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Comparisons Chart This chart of comparisons can be used with the following questions: "Which line is twice B? Which two added make H? Which line is the difference between F and D? Call A 5; name the others. Call A 6, a... |
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Concrete to Symbol This diagram represents a student's thinking and progress in math. The image on the left is concrete thinking, counting each dot. The right is symbolic thinking, a digit represents the number of dots.... |
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Constructions, Positioning Pen For Illustration showing the correct and incorrect position of a right line pen against a T-square, triangle, or straight edge when doing geometric constructions.... |
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Cubic Measure, Comparison Of Units Of Illustration comparing the fundamental units of measure 1 cubic yard and 1 cubic meter.... |
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Denisty An illustration of calculating the density of a liquid.... |
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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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Dry Measures Containers of dry measure in comparison: one bushel, peck, one half bushel, and one half peck. Illustration also shows liquid measures of quart and pint for comparison.... |
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Electric Meter A small electric meter that measures electricity in units called kilowatts-hour. The first meter is in the thousands place and points to 3, the hundreds place points to 6, and the tens place points t... |
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Function Machine A function machine template with room to enter the function, input, and output.... |
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Gallon, Imperial Standard (1824) An illustration of the imperial standard gallon in 1824.... |
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Clipart ETC is a part of the Educational Technology Clearinghouse and is funded by various grants. Produced by the Florida Center for Instructional Technology, College of Education, University of South Florida. Email the project manager.