Here are our Standardized Math Vocabulary words for grades 7 & 8.
Print them out, cut, fold and quiz yourself.
alternate interior angles 
Angles formed by two lines
cut by a transversal. They are between the two lines and on alternate
sides of the transversal.


boxandwhisker plot 
A graphic method for showing a summary of data using median, quartiles and extremes of data.


complementary angles 
Two angles the sum of whose measures is 90.


compound event 
An event made up of two or more simple events. 

coordinate plane 
Name given
to the plane containing points identified as ordered pairs,
(x, y), of real numbers. The first number in an ordered pair, called the xcoordiante, idicates the distance that the point is located along the horizontal axis, The second number, called the ycoordinate, indicates the distance that the point is located along the vertical axis. The point with coordinates (0,0) is at the center where the axes cross and is called the ORIGIN. 
corresponding
angles (1)

Any pair of angles in similar
locations in relation to a transversal intersecting two lines.


corresponding
angles (2)

Angles in the same relative position in similar or congruent figures.


equilateral
triangle

A triangle in which all of the sides have the same length.


experimental
probability

A statement of probability based on the results of a series of trials.


independent
events

Two events in which the outcome of one event does not affect the outcome of the other event.


isosceles
triangle

A triangle with two sides
equal in length. 

linear
function

An equation whose graph in a coordinate plane is a straight line. 
mutually
exclusive events

Two events that cannot occur at the same time.

net

A twodimensional figure that can be folded on its segments or curved
on its boundaries into a threedimensional surface. 
obtuse
triangle

A triangle with an obtuse angle. 
order
of operations

Rules for evaluating an expression: work first within parentheses, then calculate all exponents, then do multiplication and division together as they appear in the problem from left to right; then do addition and subtraction as they appear from left to right.

perfect
square

The product of an integer multiplied by itself (e.g., 121 is a perfect square because 11x11=121).

permutation

Possible orders, or arrangements of a set of items. Placing these items in a different order results in a new permutation.

prism

A threedimensional solid
that has two congruent and parallel faces that are polygons. The remaining
faces are rectangles. Prisms are named by their bases. 
proportion

A
statement that two fractions (ratios) are equal. NOTE: In a proportion
the product of the numbers on the diagonals will be equal. Some folks say the "cross products" are equal and some say the product of the "means" equals the product of the "extremes". 
Pythagorean
theorem

In
a right triangle with legs a and b, and hypotenuse. 
scalene
triangle

A triangle with no congruent sides.

scatter
plot

A graph with points plotted to show a relationship between two variables.

supplementary
angles

Two angles whose measures, when added together, equal 180 degrees.

surface
area

The sum of the areas of all of the faces of a threedimensional figure. 
scientific notation for large numbers scientific notation for small numbers 
A way of writing a large number in terms of a positive integer power of 10 multiplied by a number greater than or equal to 1 and less than 10.
A way of writing a small number in terms of a negative integer power of 10 multiplied by a number greater than or equal to one and less than 10.


stem
and leaf plot

A data display that shows groups of data arranged by place value.


theoretical
probability

A statement of the probability of an event without doing a experiment or analyzing data.


vertical
angles

Two
nonstraight and nonzero angles formed by two intersecting lines, but which
are not a linear pair. Vertical angles will always be congruent.
