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# Math SOL Vocab K-3

### VDOE Math Vocabulary K-3

Question | Answer |
---|---|

Angle | a figure formed by two rays called sides having a common endpoint called the vertex |

Area | the number of square units needed to cover a surface |

Array | a set of objects or numbers arranged in rows and columns |

Attribute | a quality or characteristic, such as color, thickness, size, and shape |

Bar graph | a type of graph used to display data organized by categories |

Calendar | a tool for measuring time in days, weeks, months, and years |

Circle | a closed curve with all points in one plane and the same distance (radius) from a fixed point, the center |

Classify | to sort into groups according to attribute(s) |

Commutative Property of Addition | changing the order of the addends does not affect the sum 6 + 7 = 7 + 6 |

Cardinal Number | numbers used for counting or answering the question "how many?" Associated terms: ordinal number |

Certain (probability) | An event is certain to occur if it has a probability of 1. |

Commutative Property of Multiplication | changing the order of the factors does not affect the product 8 x 6 = 6 x 8 |

Cone | solid figure with a usually circular base joined to a vertex by a curved surface Associated terms: geometric solids |

Congruent | figures with exactly the same size and shape |

Cube | solid figure with six congruent, square faces; all edges are the same length; has 8 vertices, 12 edges Associated terms: geometric solids |

Cylinder | solid figure with two congruent, parallel, usually circular bases joined by a curved surface. Associated terms: geometric solid |

Cylinder | solid figure with two congruent, parallel, usually circular bases joined by a curved surface |

Cylinder | solid figure with two congruent, parallel, usually circular bases joined by a curved surface |

Data | pieces of information collected to answer a question |

Denominator | the number of equally-sized parts that make the whole or the complete set Associated terms: fraction |

Diagonal | a line segment that joins two non-adjacent vertices in a polygon |

Difference | the distance between 2 numbers on a number line; the answer to a subtraction problem |

Digit | there are 10; any one of the symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |

Edge | in a solid figure, a line segment where two faces of the solid meet. Associated terms: geometric solids |

Equal | having the same amount or value |

Equally likely outcomes | outcomes that have the same probability. Associated terms: probability |

Equation | number sentence; a statement that two expressions or numbers are equal |

Equivalent | having the same value. |

Even number | any number ending in 0, 2, 4, 6, or 8. Associated terms: odd number |

Event | an outcome or set of outcomes of an experiment or situation; for example, getting a 3 is one possible event produced by a rolling a fair number cube. Associated terms: probability |

Experiment | in probability, any activity involving chance. Associated terms: probability |

Face | A polygon that serves as a side of a solid. Associated terms: geometric solids |

Fraction | part of a group or part of a whole |

Geometric solids | three-dimensional figures such as cone, pyramid, prism, cylinder |

Identity properties | addition: if 0 is added to any number, the sum is the same as the given number 8+0 = 8multiplication: if a given number is multiplied by 1, the product is the same as the given number6 x 1 =6 |

Impossible (probability) | an event is not possible if it has a probability of 0. Associated terms: certain, probability |

Inverse Operations | operations that undo each other; addition, subtraction, multiplication and division |

Line | has no definition; described as a set of points that goes on and on in both. has no definition; described as a set of points that goes on and on in both directions; has no endpoints; has 1 dimension directions; has no endpoints; has 1 dimension |

Line of Symmentry | a line dividing a figure or an arrangement of objects into two parts that are mirror images of each other |

Line plot | a type of graph used to display data; in a line plot, each piece of data is represented. Associated terms: axis |

Line segment | part of a line that has two endoints |

Mass | the amount of matter in an object; weight is determined by the pull of gravity on the mass of an object; mass of an object remains the same regardless of its location; weight of an object changes depending on the gravitational pull at its location |

Mixed number | a quantity expressed as a number and a proper fraction |

Number sense | equation: 3 + 4 = 7; 8 - 2 = 6 |

Numeral | a symbol representing a number |

Numerator | how many equal parts of the whole or set we have; the number of equal parts of the whole or set being considered. Associated terms: fraction |

Odd number | any number ending in 1, 3, 5, 7, or 9. Associated terms: even number |

Ordinal number | a number that names the place or position of an object in a sequence or set. Associated terms: cardinal number |

Outcome (probability) | result of an experiment. Associated terms: probability |

Pattern | numbers or objects that follow a repeating or growing rule |

Perimeter | the distance around any two-dimensional figure |

Picture graph | a data display that use pictures to represent the data |

Place value | the value a digit represents depending on its place in the number |

Plane | has no definition; described as a flat surface; has 2 dimensions. Associated terms: line, point |

Plane figure | a figure that lies in a plane; a two-dimensional figure |

Point | cannot be defined; is described as an exact location; has no dimension. Associated terms: line, plane |

Polygon | a closed plane figure composed of line segments that do not cross |

Position | location of an object relative to another(above, below, next to, beside, near, far, close by, below, above, up, down) |

Probability | the chance of an event occurring |

Product | the answer in multiplication |

Quadrilateral | a polygon with 4 sides |

Quotient | the answer in division |

Ray | part of a line that starts at a point (the endpoint) and continues forever in one direction. Associated terms: line |

Rectangle | a quadrilateral with 4 right angles (all three shapes below are rectangles) |

Rectangular prism | a solid in which all 6 faces are rectangles. Associated terms: geometric solids. |

Sample Space | all possible outcomes of an experiment. Associated terms: probability |

Set | a collection of distinct items or elements |

Sort | classify. Associated terms: attribute |

Sphere | a three-dimensional object with all of its points the same distance from its center. Associated terms: geometric solids |

Square | a rectangle with all sides congruent. Associated terms: quadrilateral, rectangle |

Square pyramid | a solid with a square base with 4 sloping triangular faces that share a vertex.Associated terms: geometric solids |

Standard form of a number | a method of writing numbers |

Statistics | the collection, organization, and analysis of data |

Sum | the answer in addition |

Survey | the collection, organization, and analysis of data |

Table | data organized using rows and columns |

Tally | a method of collecting data |

Thermometer | an instrument used to measure temperature in degrees; temperature can be measured in degrees Fahrenheit or degrees Celsius |

Triangle | A polygon with 3 sides |

Vertex | The point of intersection of the 2 rays that comprise an angle; the point of intersection of 2 adjacent line segments that comprise a polygon |

Volume | the amount a container can hold; the amount of space occupied by an object |

Weight | weight is determined by the pull of gravity on the mass of an object; mass of an object remains the same regardless of its location; |

Whole numbers | a number from the set {0, 1, 2, 3…} |

Created by:
kltnunley