Mathematics Glossary
 Middle Years
Maxine Stinka, Saskatchewan Education,
Curriculum and Instruction
Note: The
definitions included here are those that are used in the Saskatchewan
Education document "Mathematics 69: A Curriculum Guide for the
Middle Level".
Various mathematics dictionaries
may have different definitions. These definitions are designed
to be meaningful to middle level mathematics teachers.
Select the first letter of
the term that you wish to look for.
A  B
 C  D
 E  F
 H  I
 J  K
 L  M
 N  O
 P  Q
 R  S
 T  U
 V  W
 X  Y
 Z
F
face
factor
 one of the numbers that make up a number
by multiplication. E.g. 3 is a factor of 6 since 6 = 3x2..
factor tree
 a diagram representing a systematic way of
determining all the prime factors of a number. e.g.
flip
fraction
 see rational
number
 any number that can be written in the form a/b
where a and b are integers and b cannot equal
0. It is a negative fraction number if it is less than zero i.e.
either a or b, but not both, is negative.
frequency diagram
 used in statistics as a method of recording
the data collected. A tally is
often used in the frequency diagram to keep track of the number
of times something occurs.
frustum
 the region a solid cone or pyramid between the base and a plane parallel to the base.
function
a set of ordered
pairs where each first element is paired with one and only one
second element and no element in either pair is without a partner.
G
golden rectangle
 a rectangle where the ratio of its length
to its width is (1 + sqrt 5)/2 :1, i.e. about 1.618:1.
H
hectare (hm^{2})
 a unit of area that is 100 m by 100 m. It
is equivalent to 10 000 m^{2}.
height of a triangle
histogram
 a type of statistical graph that uses bars,
where each bar represents a range of values and the
data is continuous.
hypotenuse
 the side opposite the right angle in a right
triangle. It is always the longest side in the triangle.
I
image
improper fraction
inequality
 a mathematical sentence that includes one
of the symbols >, <, or the symbols for greater than or
equal to, less than or equal to, or not equal.
integer
 any number in the set 0,+/ l,+/ 2,+/
3, ...
interior angles of a polygon
 angles within a
polygon formed by the intersection of two sides.
interest
 money paid for the use of someone else's money.
 Simple interest is calculated using the formula
i = prt.
 Compound interest is calculated by adding
the interest on to the principal each time the interest is calculated.
isosceles
 a
polygon with two sides equal in length. Usually used to refer
to either a triangle or a
trapezoid.
Questions or comments about the glossary can
be directed to TheCentralizer@MathCentral.uregina.ca
or see About Us
page for more information.
