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# Grades 3 & 4

### PSSA Math Vocabulary Practice (Grades 3 & 4 )

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

An angle with a measure less than 90°. | Acute angle |

Any number that is being added. | Addend |

Time displayed on a timepiece having hour and minute hands. | Analog time |

The measure, in square units, of the inside of a plane figure. | Area |

A rectangular arrangement of objects in equal rows or columns. | Array |

A group of items. Placing these items in a different order does not create a new combination. | Combination |

A solid figure that has a circular base and one vertex. | Cone |

Having the same size and shape.Congruent angles have the same measure.Congruent segments have the same length. | Congruent |

A rectangular solid having six congruent square faces. | Cube |

A three-dimensional figure with two circular bases, which are parallel and congruent. | Cylinder |

The line segment where two faces of a solid figure meet. | Edge |

Having the same value. | Equivalent |

A variable, or any combination of numbers, variables, and symbols that represents a mathematical relationship (e.g., 24 x 2 + 5 or 4a – 9). | Expression |

A plane figure that serves as one side of a solid figure. | Face |

A set of related addition and subtraction, or multiplication and division equations using the same numbers (e.g., 6+9=15, 15-9=6, 9+6=15, 15-6=9). | Fact family |

A whole number that divides evenly into another whole number (e.g., 1, 3, 5, and 15 are factors of 15). | Factor |

A relation in which every input value has a unique output value. | Function |

A polygon with 6 sides. | Hexagon |

A mathematical sentence that contains a symbol that shows the terms on either side of the symbol are unequal (e.g., 3+4>6). | Inequality |

A straight path extending in both directions with no endpoints. | Line |

A line that divides a figure into two halves that are mirror images of each other. | Line of symmetry |

A part of a line with two endpoints. | Line segment |

The number found by dividing the sum of a set of numbers by the number of addends. | Mean (average) |

The middle number in an ordered set of data, or the average of the two middle numbers when the set has two middle numbers. | Median |

The number(s) that occurs most often in a set of data. | Mode |

The product of a given whole number and another whole number (e.g., multiples of 4 are 4, 8, 12, 16….). | Multiples |

An equation or inequality with numbers. | Number sentence |

An angle with a measure more than 90º. | Obtuse angle |

A polygon with 8 sides. | Octagon |

A pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically. | Ordered pair |

Lines that never intersect and are always the same distance apart. | Parallel lines |

A quadrilateral whose opposite sides are parallel and congruent. | Parallelogram |

A polygon with 5 sides. | Pentagon |

The distance around a figure. | Perimeter |

Two lines, segments or rays that intersect to form right angles. | Perpendicular lines |

A graph that uses pictures to show and compare information. | Pictograph |

A solid figure with a polygon base and triangular sides that meet at a single point (vertex). | Pyramid |

A polygon with 4 sides. | Quadrilateral |

A part of a line that has one endpoint and continues without end in one direction. | Ray |

A solid figure in which all six faces are rectangles. | Rectangular prism |

A transformation that produces the mirror image of a figure. | Reflection (flip) |

A parallelogram with four equal sides. | Rhombus |

An angle that measures exactly 90º. | Right angle |

A triangle that has a 90º angle. | Right triangle |

A movement of a figure that turns that figure around a fixed point. | Rotation (turn) |

A solid figure that has all points the same distance from the center. | Sphere |

A table that uses tally marks to record data. | Tally chart |

A movement of a figure to a new position without turning or flipping it. | Translation (slide) |

A quadrilateral with exactly one pair of parallel sides. | Trapezoid |

A point where lines, rays, sides of a polygon or edges of a polyhedron meet (corner). | Vertex |

The amount of space (in cubic units) that a solid figure can hold. | Volume (capacity) |

A statement that two mathematical expressions are equal. | Equation |

Created by:
pstoughton