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# DOESOL MathVoc g 4&5

### VA DOE SOL Math vocabulary for grades 4 and 5

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

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

associative property of addition | changing the groupings of three or more addends does not change the sum |

chord | a line segment whose endpoints lie on a circle a diameter is a chord that passes through the center of the circle |

Associative Property of Multiplication | Changing the groupings of three or more factors does not change the product. |

circumference | the distance around a circle |

coordinate plane | a grid formed by two axes that intersect at the origin The axes divide the coordinate plane into four quadrants. origin--intersection of the horizontal and vertical axes in the coordinate plane described by the ordered pair (0, 0) |

denominator | the number of same-size parts in a whole or set |

diameter | a chord that passes through the center of a circle |

elapsed time | the amount of time that passes between two points in time |

equally likely | two events with the same probability of occurrence |

expression | an mathematical phrase that represents a quantity; may contain variables, numbers, and/or operations |

coordinate plane | a grid formed by two axes that intersect at the origin The axes divide the coordinate plane into four quadrants. origin--intersection of the horizontal and vertical axes in the coordinate plane described by the ordered pair (0, 0) |

denominator | the number of same-size parts in a whole or set |

factor | a number that is multiplied by another number to find a product |

frequency | the number of times an outcome occurs |

line plot | A line plot shows the spread of data and each piece of data is represented by an x |

greatest common factor | the largest number that divides evenly into two or more numbers |

intersecting lines | lines that meet or cross in exactly one point |

kite | a quadrilateral with two pairs of adjacent sides congruent but not four congruent sides |

least common denominator | least common multiple of two or more denominators |

least common multiple | the smallest multiple that each of two or more numbers share |

least common multiple | the smallest multiple that each of two or more numbers share |

likelihood (of an event) | the chance or probability that an event occurs |

line graph | a graph using line segments to connect the graphed data points |

mean | a measure of central tendency; the arithmetic average; a mathematical representation of the typical value of a series of numbers, computed as the sum of all the numbers in the series divided by the count of all numbers in the series. |

median | a measure of central tendency; in a set of ordered data, the middle valueIf the data are shown with a histogram the "mode" is simply the value which corresponds to the highest point(s) on the curve. |

least common multiple | the smallest multiple that each of two or more numbers share |

likelihood (of an event) | the chance or probability that an event occurs |

metric measurement system | a system of measurement based on multiples of 10; basic units are meter (length), gram (mass), and liter (volume or capacity) |

mode | a measure of central tendency; the value(s) that occurs most often |

numerator | a representation of the number of same-size parts being considered in terms of the |

ordered pair | Identifies a location in a coordinate plane |

parallel lines | coplanar lines that do not intersect |

parallelogram | a quadrilateral with both pairs of opposite sides parallel |

perpendicular lines | lines that intersect to form right angles |

place value | the value a digit represents depending on its place in the number(tenth, hundredth, thousandth) |

plane | described as a flat surface that extends infinitely in all directions; has two dimensions |

polygon | a two-dimensional, simple, closed geometric figure that has line segments as sides |

quadrant | one of four portions into which a plane is divided by the horizontal and vertical axes |

radius | a line segment from the center of a circle to any point on the circle |

range (of a set of data) | a measure of variation; the difference between the greatest and least values in a data set |

rational number | any number that can be written as a ratio (fraction, decimal) |

rhombus | a parallelogram with all sides congruent |

trapezoid | a quadrilateral with exactly one pair of parallel sides |

tree diagram | a organized list of all possible outcomes for an event |

triangle | a polygon with three sidesTriangles can be classified by their angle types. An acute triangle has 3 acute angles. A right triangle has exactly one right angle. An obtuse triangle has exactly one obtuse angle. |

U. S. Customary measurement system | the system of measurement commonly used in the United States; common units are inches, feet, yards, and miles-length; ounces, pounds, and tons-weight; ounces, cups, pints, quarts, and gallons-capacity |

variable | a symbol that represents an unknown quantity |

Created by:
rdye