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# PSSA Math - Grade 4

### PSSA Math Vocabulary - Grade 4

time shown on a clock or watch with hour and minute hands (not digital) analog
a rectangular solid with 6 congruent square faces cube
a math sentence showing that one expression equals another equation
a number (or any combination of numbers and symbols) that shows a mathematical relationship expression
a flat surface (or plane) that is one side of a solid figure face
a number that divides evenly into another number factor
an in/out table in which a rule causes each "in value" to have a unique "out value" function
a polygon with 6 sides hexagon
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
part of a line with two endpoints line segment
the product of one number multiplied by another number multiple
a math equation with numbers number sentence
a polygon with 8 sides octagon
a pair of numbers used to locate a point on a coordinate grid 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
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 pyramid
part of a line that has one endpoint and continues in the other direction forever ray
moving a figure to show its mirror image (flip) reflection
a parallelogram with 4 equal sides rhombus
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 quadrilateral with one pair of parallel sides trapezoid
an angle that measures 90 degrees and forms a "square" corner right angle
the point where two or more lines, rays or line segments cross intersection
a flat shape with 4 or more sides polygon
a three-dimensional shape with length, width, and height solid figure
moving a figure to a new position by slide (translation), flip (rotation), or turn (reflection) transformation
any of the counting numbers whole number
figures with the same size and shape congruent
an angle that measures less than 90 degrees acute
the measure (in square units) of the inside of a plane figure (length times width) area
a rectangular arrangement of objects in equal rows or columns array
a group of items that can be arranged in a different order without changing the items in the group combination
a solid figure that has a circular base and one vertex cone
a solid figure with 2 circular bases that are parallel and congruent cylinder
the line segment where 2 faces of a solid figure meet edge
having the same value equivalent
a set of related addition/subtraction or multiplication/division equations that use the same numbers fact family
a math sentence that contains a symbol showing that the terms on either side are unequal inequality
the number found by dividing the sum of a list of numbers by the number of addends (also called the "average") mean
the middle number in a list of ordered numbers median
the number(s) that occur most often in a list of data mode
an angle that measures greater than 90 degrees obtuse
the distance around a figure perimeter
a polygon with 4 sides quadrilateral
a triangle that has a 90 degree angle right triangle
moving a figure by turning it around a fixed point (turn) rotation
moving a figure without turning or flipping it (slide) translation
a point where lines, rays, sides, or edges meet (also called a corner) vertex
the amount of space (in cubic units) that a solid figure can hold (length, times width, times height) volume
Created by: jroeder

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