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54 Cards in this Set
- Front
- Back
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Value
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how much something is worth
EX: the value of 5 twenty dollar bills is $100.00 |
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Acute Angle
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an angle smaller than 90 degrees
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Obtuse Angle
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an angle larger than 90 degrees
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Right Angle
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a 90 degree angle
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How many more
or How many fewer |
always refers to a subtraction problem
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Difference
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the answer to a subtraction problem
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Sum
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the answer to an addition problem
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Product
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the answer to a multiplication problem
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Quotient
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the answer to a division problem
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Face
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the flat surface on a 3D object
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Vertices
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the corners of a 3D object where at least 3 edges meet
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Edges
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the line segment where 2 faces of a 3D figure meet
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Equation
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a written problem which includes numbers
EX: 3x7=21 |
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Line Segment
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a part of a line between two endpoints. The length can be measured.
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Line
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a straight set of points that extend in opposite directions without ending
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Equivalent
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when two items are equal or have the same value
EX: 1/2=2/4 |
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Relationship
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when two objects or problems have something in common
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Decimal Card
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another way to identify a 10 by 10 grid or 100 boxes
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Elapsed Time
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when you must figure out how much time has passed by adding or subtraction time
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Represent
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another word for "show"
EX: the picture could be shown to represent.... |
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Symmetry
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if an item is folded in half both sides will be equal
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Mixed Number
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a combination of a whole number and a fraction
EX: 1 1/2 |
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Parallel
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two lines that are side by side like train tracks. They will never intersect.
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Perpendicular
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two lines that are at right angles to eachother
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Closed Figure
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a figure that has no openings, such as an 0
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Estimate
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this is when you find an approximate number, it is NOT exact.
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Similar
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items that are close but not exactly the same.
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Congruent
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same size, same shape
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Attribute
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a characteristic that helps define a shape.
EX: a square has 4 lines and 4 corners |
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Reflection
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(flip) when an object is flipped from one quadrant to another
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Rotation
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(turn) when an object is turned into a different quadrant
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Translation
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(slide) when an object has been slid from one quadrant to another
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Area
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a calculation where you multiply the inside measurements to get the total of the inside space
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Perimeter
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the measurement of the outside of an object or shape (the border around)
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Volume
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a calculation where you multiply the length, width, and height of an object to find the space inside an object
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Rectangle
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a 4 sided 2 dimensional shape with two sets of equivalent and parallel
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Square
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a 4 sided 2 dimensional shape where all line segments are equal
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Right Triangle
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a 3-sided 2D object that contains one right angle, the interior angles add to equal the sum of 180 degrees
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Equilateral Triangle
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a 3-sided 2D object that contains 3 equal (60 degrees each) angles and 3 equal sides, the interior angles add to equal the sum of 180 degrees
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Scalene Triangle
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a 3-sided 2D object that contains no equal angles or sides, the interior angles add to equal the sum of 180 degrees
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Pentagon
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an 5-sided 2D shape
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Hexagon
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an 6-sided 2D shape
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Octagon
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an 8-sided 2D shape
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Polygon
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any 2D shape that is made of straight lines and is closed
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Circle
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a simple shape where all points in a plane which are the same distance from the center
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Sphere
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a 3 dimensional round object, contains no faces, edges, or vertices
EX: a ball |
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Cylinder
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a 3D shape characterized by two circles opposite each other joined by a curved surface, contains 2 faces, no edges or vertices
EX: can |
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Rectangular Prism
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a 3D shape which is made up of 4 rectangles and 2 squares to form the ends, contains 6 faces, 12 edges, and 8 vertices
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Cube
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a 3D shape which is made up of 4 squares, contains 6 faces, 12 edges, and 8 vertices
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Triangular Prism
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a 3D shape which has 2 triangular bases joined by rectangles, contains 5 faces, 9 edges, and 6 vertices
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Square Pyramid
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a 3D object with a square base attached to four triangles which connect at a single vertices, contains 5 faces, 8 edges, and 5 vertices
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Triangular Pyramid
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a 3D object with a triangular base attached to 3 triangles which connect at a single vertices, contains 4 faces, 6 edges, and 4 vertices
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Cone
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a 3D object with a circular base extended upward by a curved face that meets at a single vertex, contains 1 face, and not edges or vertices
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Base
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a face that a 3D object rests on
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