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A-B | C | D | E-F | G-L | M-N | O-P | Q-S | T-Z
3-4-5 acute angle an angle whose measure is
between 0 3-4-5 acute triangle a triangle whose angles each
measure less than 90 3-4-5 algorithm a step by step method for
computation 5 altitude see height 3 analog clock a clock with hands 3-4-5 angle two rays with a common
endpoint 5 arc part of a circle from one point
on the circle to another 3 array an arrangement of objects in
equal rows 3-4-5 area the measure in square units of
the surface inside a closed boundary 3-4-5 attribute a characteristic or defining
quality 3-4-5 average 3-4-5 bar graph a graph in which horizontal or
vertical bars represent data 5 base of triangle the side to which the
height/altitude is drawn 5 base number in exponential notation, the
number used as the factor 3-4-5 best fit line a straight line drawn through a
cluster of points plotted on a graph 3-4-5 bit base ten piece used to
represent one; represents one hundredth when working with
decimals
GRADE LEVEL(S)
TERM
DEFINITION
and 90
3-4-5 Cartesian coordinate
grid a system for locating points on
a plane by means of ordered number pairs or coordinates;.The
grid is formed by two number lines that intersect at right
angles at their zero points 3-4-5 capacity the amount it takes to fill a
figure; see customary
system of measurement 3-4-5 categorical variable a variable with values that are
not numbers 5 center of circle the point inside a circle that
the same distance from every point on the circle 5 central angle an angle whose vertex is at the
center of a circle 3-4-5 chance the likelihood of an event to
occur 5 chord any line segment that connects
two points on a circle 3-4-5 circle graph a graph in which a circle and
its interior are divided into parts to represent the parts
of a set of data. Also called a pie graph 3-4-5 circumference the distance around a circle or
sphere 3-4-5 commutative property if a and b as numbers, then
changing the order in which they are added or multiplied
will not change the sum or product 5 complementary angles two angles whose measures have
a sum of 90 5 composite a whole number that has more
than two whole number factors 5 concave defines a shape that curves
inward; opposite of convex 5 concentric circles circles that have the same
center but radii of different lengths 3-4-5 cone a solid shape having a circular
base, curved surface, and one vertex 3-4-5 congruent having the same size and
shape 4-5 convenient numbers a rounded number used to
estimate 5 convex defines a shape that curves
outward; opposite of concave 3-4-5 corner see vertex 3-4-5 cubic unit a unit used to measure
volume 3-4-5 The measuring system used most
often in the United States. Units for linear measure
(length, distance) include inch, foot, yard, and mile; units
for weight include ounce and pound; units for capacity
(amount of liquid or other pourable substance a container
can hold) include cup, pint, quart, and gallon 3-4-5 cylinder a 3-dimensional shape having a
curved surface and parallel circular or elliptical bases
that are the same size
GRADE LEVEL(S)
TERM
DEFINITION
3-4-5 data information gathered by
observation, questioning, or measurement. 3-4-5 data table a columned chart to organize
data 3-4-5 decagon a polygon with ten
sides. 3-4-5 decimal a number written in standard
notation containing a decimal point. 3-4-5 degree (º) a unit of measure for angles;
based on dividing a circle into 360 equal parts. A unit of
measure for temperature. 4-5 denominator the bottom number of a fraction
that tells the number of equal parts into which the whole is
divided. 4-5 density measurement found by dividing
the mass of an object by its volume. 5 diagonal a line segment that connects
two vertices of a polygon and is not a side. 5 diameter a chord through the center of a
circle. 3-4-5 digit any one of the ten symbols 0,
1, 2, 3, 4, 5, 6, 7, 8, 9 3-4-5 displacement a method of measuring the
volume of an object 3-4-5 distributive
property a property that relates two
operations of numbers. 3-4-5 to break a set into
parts 4-5 dividend a quantity to be divided; see
divide 4-5 divisor the quantity by which the
dividend is to be divided; see divide 5 dodecagon a polygon with twelve
sides
GRADE LEVEL(S)
TERM
DEFINITION
example: a(b +/- c) = ab +/- ac a * (x +/- y) = (a * x) +/-
(a * y) (5)
3-4-5 edge the line segment where two
faces of a solid figure meet 3-4-5 endpoint the point at either end of a
line segment or a ray 3-4-5 equation a mathematical sentence that
states the equality of two quantities, a number
sentence 5 equidistant equally distant from one point
to the next 4-5 equilateral triangle a triangle with all three sides
of equal length 3-4-5 equivalent two values that are the
same 4-5 equivalent fractions fractions that have different
numerators and denominators, but have the same
value 3-4-5 estimate a calculation of a close,
rather than exact answer; see rounding 3-4-5 expanded form a number written as the sum of
each digit times a power of 10; 4-5 exponential notation a shorthand way of representing
repeated multiplication of the same factor; 4-5 exponent in exponential notation, the
number of times a base is used as a factor. It is also
referred to as power 3-4-5 extrapolation prediction outside a range of
available data 3-4-5 face a flat surface on a
3-dimensional shape 3-4-5 factor a number that divides into
another number evenly, or a number that is multiplied by
another number 3-4-5 fair game a game in which all players
have an equal chance of winning 3-4-5 fixed variable a variable that is kept
constant in an experiment 3-4-5 flat base ten piece used to
represent one hundred; represents one when working with
decimals 3-4-5 flip to turn a figure over its line
of symmetry so that its new position is its mirror
image 3-4-5 fraction 1. used to name part of a whole
object or part of a set; 2. a number written as
GRADE LEVEL(S)
TERM
DEFINITION
example: 300 + 40 + 8 = 348
example: 32 = 3 x 3
,
where a and b are whole numbers and b is not zero
3-4-5 geometric solid a 3-dimensional shape
(rectangular prism, square pyramid, cylinder, cone, and
sphere 5 googol the figure 1 followed by 100
zeros equal to 10100 5 googolplex the figure 1 followed by a
googol of zeros equal to 10(10^100) 3-4-5 gram a metric unit of
mass 5 greatest common
factor the largest factor that two or
more numbers have in common 5 the perpendicular line formed
from a vertex to the opposite side of the triangle; also
referred to as altitude 3-4-5 hexagon a polygon with six
sides 3-4-5 horizontal axis the x axis on a graph or
coordinate grid (line parallel to the horizon) 5 hypotenuse in a right triangle, the side
opposite the right angle 5 image the new figure after
transforming an original figure 4-5 improper fraction a fraction whose numerator is
equal to or greater than its denominator 3-4-5 interpolation a prediction within the range
of available data 3-4-5 intersect to meet at a point, line,
etc. 4-5 isosceles triangle a triangle that has two sides
of equal length 3-4-5 keystroke entries into a
calculator 5 least common
denominator the smallest number that is a
multiple of two or more numbers 3 leftover see remainder 5 leg (of a right
triangle) one of the two sides that forms
the right angle 3-4-5 length 1. the longer of the two sides
of a closed shape (grade 5); 2. the distance between two
points (grades 3-5) 3-4-5 line graph a graph in which points are
connected by a line or line segments to represent
data 3-4-5 line segment a part of a line consisting of
two endpoints and all the points between them 3-4-5 line symmetry the property of a figure that
indicates it can be flipped about a line and land exactly on
itself 4 lowest terms a fraction in which the
numerator and denominator have no common factor except
one
GRADE LEVEL(S)
TERM
DEFINITION
4-5 manipulated variable in an experiment, the variable
known prior to conducting the experiment 3 mass the quantity of matter in an
object. 3 math hoppers a term used to describe skip
counting on a number line. 3-4-5 an average found by adding the
numbers in the set and dividing the sum by how many numbers
are in the set. 3-4-5 the middle value in a set of
data where the data is listed in order from smallest to
largest (or largest to smallest). If there is an even number
of data points, the median is the mean (average) of the two
middle values. 3-4-5 meniscus the curved upper surface of
liquid in a cylinder, the bottom of which is used to
determine volume. 3-4-5 metric system of
measurement a measurement system based on
the base ten numeration system and used in most countries in
the world. Units for linear measure (length, distance)
include millimeter, centimeter, meter, kilometer; units for
mass (weight) include gram and kilogram; units for volume
(amount of liquid or other pourable substance a container
can hold) include milliliter and liter 5 midpoint the point on a line segment
that is halfway between the two endpoints. 3-4-5 mixed number a number that has a whole
number and a fraction. 5 the value or values that occur
most often in a set of data. 3-4-5 multiple the product of two whole
numbers 4-5 negative number a number less than
zero. 3-4-5 nonagon a polygon with nine
sides. 5 n-gon a polygon with n
sides. 3 null an empty set 4-5 numerator the top number of a fraction
that tells the number of equal parts being
considered. 4-5 numerical variable a value expressed in
numbers.
GRADE LEVEL(S)
TERM
DEFINITION
4-5 obtuse angle an angle whose measure is
greater than 90 5 obtuse triangle a triangle that has one angle
that is greater than 90 3-4-5 octagon a polygon with eight
sides 4-5 order of operations rules describing what sequence
to use 3-4-5 ordered pairs two numbers in a specific order
used to locate a point on a coordinate grid. They are
usually written inside parentheses 3-4-5 origin the point where the x-axis and
y-axis intersect on a coordinate grid; also referred to as
"Mr O." 3-4-5 pack base ten piece used to
represent one thousand 3-4-5 parallel lines lines that are the same
distance apart and never meet 3-4-5 parallelogram a quadrilateral that has two
pairs of parallel sides. Pairs of opposite sides of a
parallelogram are congruent 3 partitioning breaking apart into
groups 3-4-5 pentagon a polygon with five
sides 4-5 percent the value of a ratio that
compares a number to 100, per hundred, or out of one
hundred 4-5 perimeter the distance around a
figure 3-4-5 perpendicular two lines that meet at a right
angle 3-4-5 place value the value of a position of a
digit in a number relative to the decimal point 3-4-5 point graph used to show change over time
or trends and patterns 3-4-5 polygon a closed figure consisting of
three or more sides 3-4-5 population a group of individual persons,
objects or items, from which statistical samples are taken
for measurement 4-5 positive numbers a number greater than
zero. 4-5 power see exponent. 4-5 prime a whole number greater than one
that has exactly two whole-number factors, one and
itself. 4-5 prime factorization a number expressed as a product
of primes. 2 x 2 x 2 = 8 4-5 prism a polyhedron that has two
parallel congruent faces called bases that are the same size
and shape 3-4-5 probability a measure of the likelihood
that an event will occur 3-4-5 product the result obtained by
multiplying two or more numbers 4-5 proportion an equation stating that two
ratios are equivalent
GRADE LEVEL(S)
TERM
DEFINITION
and less than 180
3-4-5 quadrant one of the four regions in a
coordinate plane formed by the coordinate axes 3-4-5 quadrilateral a polygon with four
sides 3-4-5 quotient the answer to a division
problem 4-5 radius 1. a line segment connecting
the center of a circle to any point on the circle; 2. the
length of this segment 3-4-5 range the difference between the
maximum and minimum in a set of data 5 ratio a comparison of two quantities.
Ratios can be expressed as fractions, decimals, percents,
and with words or written with a colon between the two
numbers being compared 3-4-5 ray a line that has a beginning
point called an endpoint 3-4-5 regular polygon a convex polygon in which all
the sides are equal length and all the angles have equal
measure 3-4-5 the number left over when
dividing a set of objects; see divide 5 repeating decimals a decimal that continues a
pattern without end 4-5 responding variable the variable whose values are
learned by conducting the experiment 3-4-5 rhombus a parallelogram whose sides
have equal length 3-4-5 right angle an angle that measures
90 4-5 right triangle a triangle that has one angle
that equals 90 3-4-5 a method used to find the
nearest ten, hundred, thousand, etc. 3-4-5 sample a part of a population used for
investigation 5 scalene triangle a triangle that has no equal
sides 4-5 scientific notation a system of representing
numbers in which a number is written as the product of a
power of 10 and a number that is at least 1 but less than
10 3-4-5 septagon a polygon with seven
sides 4-5 sides of an angle two rays that share the same
endpoint 3-4-5 similar having the same shape, but not
necessarily the same size 3-4-5 skinny base ten piece used to
represent ten; represents one tenth when working with
decimals 3-4-5 slide moving a figure in any
direction 5 speed a ratio that compares distance
traveled with the time taken to travel the
distance 3-4-5 sphere a solid circular shape
(example: a ball is a sphere) 3-4-5 square number a whole number that is the
product of a whole number multiplied by itself 3-4-5 square units a unit of measurement for
area 3-4-5 standard form a number written with one digit
for each place value (example: 348) 4-5 straight angle an angle that measures
180 3-4-5 strategy a method used to solve a
problem 3-4-5 survey a tool used for gathering data
to solve a problem 4-5 symmetry see line symmetry, point
symmetry
GRADE LEVEL(S)
TERM
DEFINITION
3-4-5 tangrams a Chinese puzzle made of a
square cut into seven pieces 4-5 tessellation repeating congruent figures
that cover a surface without overlapping or leaving
holes 3 trading regrouping of numbers
(borrowing) 3-4-5 trapezoid a quadrilateral with exactly
one pair of parallel sides 3-4-5 trial a individual test within an
experiment 3-4-5 turn around fact a strategy in which a new fact
is learned by turning around a known fact; 5 unfair game a game that all players do not
have an equal chance of winning 3-4-5 value a numerical or categorical
choice for a given variable 3-4-5 variable a letter or other symbol that
represents a number 5 velocity the speed in a given
direction 3-4-5 the point at which the rays of
an angle, two sides of a polygon, or the edges of a
polyhedron meet (a corner) 3-4-5 vertical axis the y axis line on a graph or
coordinate grid 3-4-5 volume the number of cubic units it
takes to fill a figure (metric system) 3 width the shorter of the two sides of
a closed shape 3-4-5 word form a number written in words
(three hundred forty eight)
GRADE LEVEL(S)
TERM
DEFINITION
example: 3 x 5 = 15, 5 x 3 = 15
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Public Schools District 39