square a rectangle whose sides are all the same length
TRANSCRIPT
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square
A rectangle whose sides are all the
same length.
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square array
A rectangular array with the
same number of rows as columns.
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square number
A number that is the product of a whole
number multiplied by itself; a whole number to the second power.
1
4
9
16
35 = 35 x 35 = 1225 2
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square of a number
The product of number and
itself.
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square pyramid
A pyramid with a
square base.
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square root of a number
The square root of a number n is a number which, when multiplied by itself, results in the
number n.
320= 2*2*2*2*2*2*5 320= 4*4*4*5 or
320=16*4*5 √320=8√5
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square units
The units used to measure
area.
7 square units
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standard notation
The most familiar way of representing whole
numbers, integers, and decimals by writing
digits in specified place.
587 = 500 + 60 + 7
expanded notation
standard notation
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standard unit
A uniform unit of
measure.
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step graph
A graph that looks like
steps.
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stem-and-leaf plot
A display of data in which digits with larger place values are named
as stems, and digits with smaller place
values are names as leaves.
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straightedge
A tool used to draw a
line segment.
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subtraction
A math operation based on taking
away one quantity from another or
decreasing quantity.
7- 3
4
minuend
subtrahend
difference
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subtrahend
The number being subtracted.
7- 3
4
minuend
subtrahend
difference
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sum
The answer to an adding problem.
addends
14 + 15 + 6 = 35
sum
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supplementary angels
Two angels whose measures total 180 .o
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survey
Collection data for graphing
and analysis.
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symmetry
The property of exact balance in a figure; having the
same size and shape across a dividing
line.
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symmetry
The matching of two halves of a shape.
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tally marks
Marks used to keep
track of a count.
5 10 11
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tally chart
Tally charts are used to organize and
display data. A tally chart is a table that
shows how many times each value appears.
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tangent
Intersecting at exactly one
point.
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template
A pattern used as a guide in making
something accurately.
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tens
The place-value position equal to
ten times the unit value.
59270
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term
In an algebraic expression or
equation, a number or a product of a number
and one or more variables.
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terminating
decimal
Decimals that continue a
pattern without end.
.333… 1 3
= .30
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tessellation
An arrangement of closed shapes that covers a surface
completely without overlaps or gaps.
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tetrahedron
A polyhedron with four
faces.
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theorem
A mathematical statement that can be proven to be true (or
sometimes, a statement that is proposed and needs to be proven).
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3-dimensional
(3-D)
Objects with thickness,lengt
h and width.
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3-dimensional
(3-D)
Objects that are not completely
within a single flat surface.
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tile
A shape used in a tessellation. If only
one shape is repeated in a tessellation, the tessellation is called
a same-tile tessellation.
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tiling
An arrangement of closed shapes that covers a surface
completely without overlaps or gaps.
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time line
A number line showing years,
days,and events in a sequence.
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tool kit
A bag containing
things needed in math.
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top-heavy fraction
A fraction that names a number greater than or
equal to 1; a fraction whose numerator is
equal to or greater than its denominator.
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trade-first subtractio
n
Subtraction procedure in which all necessary
trades are done before any
subtractions are carried out.
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trapezoid
A quadrilateral that has one pair of
parallel sides. No two sides need to
be the same length.
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translation
The motion of “sliding” an object or picture along a
straight line.
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transparent mirror
A mirror with a front and back face that has a
recessed edge used for drawing lines of
symmetry.
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triangle
A 3-sided polygon.
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triangular prism
A prism whose bases
are triangles.
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triangular
pyramid
A pyramid whose bases (faces) are triangles.
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trillion
A digit(s) followed by 12 whole-number places.
One trillion written
in number form is
1,000,000,000,000
in exponential form
1012
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triple
Three times an amount.
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turn
Rotation.
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turn-around facts
A pair of add or multiplication facts in which the order of the addends or
the factors is reversed.
6 + 33 + 6
143 + 2323 + 143
2 x 33 x 2
234 x 55 x 234
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twin primes
Two prime numbers that are separated
by just one composite number.
3 and 5 are twin primes, because they are separated by the composite number 4.
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2-dimensional
(2-D)
Objects completely within a flat surface; objects with length and width, but no
thickness.
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unit
A label, descriptive word, or unit of measure
used to put a number in context.
24 children27 ducks
30 cents
3 o’clock
1 kg
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unit
ONE of something,
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unit box
A box displayed alongside a set of
numbers or problems.
UnitUnit
Unit
Unit
Unit
cents
dogs
days
inches
bats
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unit fraction
A fraction that names one of the equal parts
of the whole. The numerator is always 1.
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unit marks
The equidistant makes that represent
numbers on thermometers, rulers,
and other scales of measurement.
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U.S. customary
system
The standard measuring
system used in the United
States.
Distanceinchfootyardmile
Capacitycuppint
quartgallon
Weightouncepound
TemperatureFahrenheit
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variable
A letter other symbol that represents a
number. A variable need not represent
one specific number; it can stand for many
different values.
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vertex (vertices)
The point at which the rays or line segments of an angle, sides of a polygon, or the ends
of a polyhedron meet.
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vertical angles
Two intersecting lines form four
angles. Two angles with the same vertex,
but no sides in common.
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volume
The measure of the amount of space a 3-dimensional shape
takes up.
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weight
A measure of how heavy
something is.
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“What’s My
Rule?”
A routine that involves a set of number pairs in with the numbers in each pair are related to each other
according to the same rule.
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whole
The entire object, collection of objects,
or quantity being considered; the ONE,
the unit, 100%.
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whole number
Any of the numbers.
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Whole number
Any of the numbers.
1, 2, 3, 4, …
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width of a rectangle
Length of one side of a rectangle or
rectangular object; often the shorter
side.
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X-by-y array
An arrangement having x rows of y per
row, representing x set of y objects in
each set.
2-by-6 arrays: 2 rows, 6 per row
Array of Dots Array of squares
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yard (yd)
Standard unit of length equal to 3 feet or 36
inches.
1 2 3
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zero facts
The sum of two 1-digit numbers where one of the addends is zero. The product of two 1 digit numbers. The produce is always
0.
0 + 5 = 5 4 x 0 = 0
8 + 0 = 8 0 x 8 = 0
0 + 6 = 6 7 x 0 = 0
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zone
A group of locations, usually determined
by distances, for which a uniform rate
is charged by a delivery or
transportation system.