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Vocabulary
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MIDDLE SCHOOL MATH VOCABULARY
This is just a vocabulary list. For definitions and examples please talk with your child’s
teacher or go to : http://connectedmath.msu.edu/parents/ss/glossary/
Absolute value
Abundant number
Acute angle
Additive inverse
Algorithm
Angle
Angle sum
Area
Area model
Associative property
Attribute
Bar graph (bar chart)
Base – two meanings in math
Base plan
Base ten number system
Basic design element
Benchmark
Binomial probability
Box-and-whisker plot ( or box plot)
Building mat
Central angle
Certain outcome
Chance
Change
Chord
Circle
Circumference
Coefficient
Common factor
Common multiple
Commutative property
Complementary angles
Composite number
Compound growth
Cone
Congruent figures
Conjecture
Constant term – two definitions
Coordinate graph – two definitions
Coordinate graph – two definitions
Coordinate pair
Corresponding
Counting tree
Counts
Cube
Customary system
Cylinder
Data
Decay factor
Decimal
Deficient number
Degree
Denominator
Dependent variable
Diagonal
Diameter
Dimensions
Distribution
Distributive property
Dividend
Divisor – two definitions
Edge
Equally likely
Equation, formula
Equilateral triangle
Equivalent expressions
Equivalent fractions
Equivalent ratios
Even number
Event
Expanded form
Expected value (or long-term value)
Experimental probability
Exponent
Exponential decay
Exponential form
Exponential growth
Exponential relationship
Exterior angle
Face
Fact family
Factor
Factored form
Factorization
(
)
Factor pair
Fair game
Five-number summary
Fraction
Function
Fundamental theorem of arithmetic
Graphs
Greatest common factor
Growth factor
Growth rate
Height
Histogram
Hypotenuse
Image
Impossible outcome
Improper fraction
Independent variable
Inequality
Integers
Interior angle
Intersecting lines
Inverse operations
Inverse variation
Irrational number
Irregular polygon
Isometric dot paper
Isosceles triangle
Kaleidoscope
Law of large numbers
Least common multiple
Legs
Length (linear dimensions covering)
Like terms
Linear dimensions – covering
Linear equation in standard form
Linear function (function)
Linear inequality
Linear relationship
Linear term
Line plot
Line reflection
Line segment
Line of symmetry – two definitions
Lower quartile
Mathematical model
(
)
Mathematical model
Maximal building
Maximum value
Mean – two definitions in math
Measures
Measures of center
Median
Midpoint
Metric system, international system of measurement, SI system
SI
Million, billion, trillion
Minimal building
Minimum value
Mixed number
Mode
Multiple
Multiplicative inverses
Near-perfect number
1
Negative number
Nested triangles
Net
Network
Number sentence
Numerator
Numerical data
Oblique prism
Obtuse angle
Odd number
Opposites
Order of operations
Ordered value bar graph
Origin
Outcome
Outlier
Parabola
Parallel lines
Parallelogram
Pattern
Pay off
Percent
Perfect number
Perimeter
Perpendicular
Perpendicular lines
Pi
Point of intersection
Point of intersection
Polygon
Population
Positive number
Possible
Powers of ten
Prime factorization
Prime number
Prism
Probability
Probable
Proper factors
Properties of equality
Proportion
Pyramid
Pythagorean theorem
Quadrants
Quadratic expression
Quadratic relationship
Quadrilateral
Quotient
Radius
Random events
Random sampling
Range
Rate
Rate table
Ratio
Rational numbers
Ray
Real numbers
Reciprocal
Rectangle
Rectangular prism
Reflection symmetry
Regular polygon
Relationship
Relatively prime numbers
Repeating decimal
Rep-tile
Rhombus
Right angle
Right prism
Right triangle
Roots
Roots
Rotation
Rotation symmetry
Rule
Run
Sample
Sampling distribution
Samples space
Scale, scaling
Scale – two different definitions
Scale factor
Scalene triangle
Scatter plot
Scientific notation
Set of building plans
Similar
Simulation
Slope
Sphere
Square
Square number
Square root
Standard form
Stem-and-leaf plot (stem plot)
Straight angle
Supplementary angles
Surface area
Survey
Symmetry
System of linear equations
System of linear inequalities
Systemic sampling
Table – two different definitions
Term
Terminating decimal
Tessellation
Theoretical probability
Tiling
Transformation
Translation
Translation symmetry
Transversal
Trapezoid
Tree diagram
Trail
Triangular number
Triangular number
Unique
Unit cube
Unit fraction
Unit rate
Upper quartile
Value of an attribute
Value bar graph
Variability of a set of numerical data
Variable
Venn diagram
Vertex
Volume
Voluntary-response sample
Width
X-axis
X-intercept
Y-axis
Y- intercept
Z – ziggurat
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