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Grade K
Above – higher than
Add - to put two or more things together
After – behind; happening later
Before – in front of; happening earlier
Behind – in back of
Below – lower than
Beside – next to
Between – in the middle of
Capacity – the amount that a container can hold
Cent – one of 100 equal parts of a U.S. dollar; a value of money
Cent Symbol – the mark for the word “cent” or “cents” - ₵
Circle – a shape with a perfectly round curved edge
Column – an arrangement of items from top to bottom or bottom to top
Cone – a solid shape with a circle on one end that connects to a point at the other end
Count – to say numbers in a given pattern
Cube – a solid shape with six equal square faces
Cylinder – a solid shape with equal circles on each end
Divide – to separate into equal groups
Doubles – two of the same number
Equal – exactly the same; having the same value
Equal parts – sections of a whole that are exactly the same size
Estimate – to make a good guess about value or measurement with given information
Even Number – every number that can be divide into groups of two without having one left over; every number ending in 0, 2 ,4, 6, or 8
Face – a flat side of a solid shape
Fewest – the smallest number of items
Page 1 of 39
Fifth – the ordinal number that tells the number five place
First – the ordinal number that tells the one before all the others
Flip – to turn over a figure from front to back or back to front
Fourth – the ordinal number that tells the number four place; (also see one fourth)
Graph – a chart showing information using symbols, points, bars, or lines
Greater – more
Greater Than – more than
Greatest – more than all the others
Heaviest – weighing more than all the others
Height – the distance from top to bottom or bottom to top
Hour – a measure of time equal to 60 minutes
In back of – behind
In front of – ahead of
Inch – a small unit to measure length; in.
Inside – the place between the edges of a figure; the opposite of outside
Large – big
Largest – bigger or more than all the others
Last – at the end
Least – less than all the others
Left – a direction; the opposite of right; a word used in subtraction problems to show what remains
Length – the distance from one end to the other end
Less – not as many
Less Likely – less than an equal chance that something will happen
Less Than – not as many as; smaller than
Likely – probably will happen
Line Segment – a straight path usually marked with two endpoints
Longer – having more length
Page 2 of 39
Longest – having more length than all the others
Matching Sets – groups of things that have exactly the same number
Matrix – an arrangement of items both left to right and up and down, usually showing shape, size, and color
Measure – to find the length, weight, height, temperature, capacity, time, and so on, using tools
Medium – a size that is between small and large
More – a larger amount; greater
Most – the largest amount; greater than all the others
Number – one or more digits showing an amount
Odd Number – every number that has one left over after being divided into groups of two; every number ending in 1, 3, 5, 7 or 9
One Cup – a small unit to measure liquids and/or dry things
One Fourth – one of four equal parts; ¼
One Half – one of two equal parts; ½
On Top Of – p0laced on the highest point of
Outside – the place not between the edges; opposite of inside
Over – above
Parallelogram – a shape with four straight sides that has two pairs of parallel lines
Pattern –a repeating arrangement of something
Pictograph – a way of showing information using pictures or symbols
Quart – a unit used to measure liquids; qt.
Rectangle – a shape with four straight sides and four square corners
Right – a direction; the opposite of left
Second – the ordinal number the tells the number two place; a short measure of time
Shorter – having less length or height
Shortest – having the least length or height of all
Slide – to move a shape from one place to another on a flat surface without turning it
Small – little
Smallest – having the least sizePage 3 of 39
Sort – to separate items into groups based on something they have in common
Sphere – a round solid shape like a basketball or globe
Square – a shape with four straight, equal sides and four square corners; a special kind of rectangle
Sum – the answer to an addition problem
Symmetrical – having an imaginary line so that the parts on both sides are alike
Taller – having more height
Tallest – having more height than all the others
Third – the ordinal number that tells the number three place
Time – a period in which something happens
Total – complete; altogether
Triangle – a shape with three straight sides and three angles
Turn – to move a shape around a point; to rotate a shape
Under – beneath
Unlikely – probably will not happen
Weight – how heavy something is
Whole – all parts together; complete
Width – a measure from side to side
Page 4 of 39
Grade 1
Addition – an operation that combines two or more addends to find the sum
Afternoon – the time of day between noon and evening
Angle – the figure formed by two rays extending from a common endpoint
Area – the number of square units needed to cover a surface: area = length x width
Associative Property of Addition – the property that states that changing the grouping of the addends does not affect the sum
Balance – a scale used to determine which of the two objects weighs more
Bar Graph – a graph that displays data using parallel rectangles, or bars, whose lengths are proportional to the quantities they represent
Calculator – a tool used to quickly work math problems
Calendar – a chart that shows the month, day, year, and day of the week
Capacity – the amount that a container can hold
Cent –one of 100 equal parts of a U.S. dollar; a value of money
Cent Symbol – the symbol for the word “cent” or “cents” – ₵
Center – the point that is equidistant from all points on the border of a circle or sphere; the middle
Centimeter – a small metric unit used to measure length; cm.
Certain – absolutely sure to happen
Chart – an organized display of information
Circle – a closed plane figure with a curved edge, the center of which is equidistant from every point on the edge
Clock – a tool that shows and measures time by hands moving on a dial; a digital clock is a tool that shows and measures time using digits instead of hands
Coin – a piece of metal with a specific value used as money
Column – a vertical arrangement of items
Commutative Property of Addition – the property that state that changing the order of the addends does not affect the sum
Compare – to examine the likenesses and differences of objects; to determine which number is greater or whether the numbers are equal
Page 5 of 39
Comparison Symbols – symbols that show whether a number is greater than (˃), less than (˂), or equal to (=) another number
Cone – a geometric solid bounded by a circular base and the surface formed by line segments joining all points on the edge of the circular base to one common vertex
Congruent – having the same size and shape
Corner – the point where lines, edges, or sides meet
Count Backward – to count down by subtracting
Count On – to count by adding one each time
Cube – a geometric solid with six congruent square faces
Cylinder – a geometric solid bounded by congruent circular bases and the surface formed by parallel line segments joining all points on the edges of the one base to the edges of the other base
Date – the month, day, and year
Day – the time between sunrise and sunset; the 24-hour time period from one midnight to the next; the word corresponding to the day of the week (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday); the number corresponding to the day of the month
Decimal Point – the point that separates the dollars from the cents when writing an amount of money; the point that separates the whole number from the decimal part of a number; the point that separates the ones’ place from the tenths’ place
Degree – a unit used to measure temperature; °
Difference – the answer to a subtraction problem
Digit – any of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 used to write numbers
Digital – using digits
Digital Time – the time shown on a clock using digits instead of using a dial and hands
Dime – a U.S. Coin worth 10 cents
Distance – the length of space between two points
Divide – to separate into equal groups
Dollar – the basic unit in the U.S. money system that is equal to 100 cents
Dollar Sign – the symbol for the word “dollar” or “dollars - $
Doubles – two of the same number
Doubles Facts – addition facts in which the two addends are the same number
Page 6 of 39
Dozen – a set of twelve
Edge- the line segment where two faces of a geometric solid intersect; the border of a closed figure
Eighths – eight equal parts that combine to make one whole
Endpoint – a point at the beginning or the end of a line segment
Equal Groups – sets of objects having the same number or value; a way of talking about multiplication and division
Equal Parts – parts that are exactly the same size
Equal Pieces – Pieces that are exactly the same
Equals Sign – the symbol that shows that two quantities have the same value - =
Estimate – to approximate, or guess, the value or measurement based on given information
Even – every number divisible by 2; every number ending in 0, 2, 4, 6, or 8
Evening – a time of day between late afternoon and sunset
Face – a flat surface of a geometric solid
Fact Family – a group of addition facts and subtraction facts that all use the same three numbers; a group of multiplication facts and division facts that all use the same three numbers
Fahrenheit – a scale for measuring temperature named for Gabriel Fahrenheit; on the Fahrenheit scale, the freezing point of water is 32 degrees and the boiling point of water is 212 degrees
Fifth – the ordinal number that tells the number five position
First – the ordinal number that tells which one is before all the others
Flip – to turn over a figure from front to back or from back to front along a fixed line or point; reflect
Foot – a U.S. Customary System unit used to measure length, height, or distance; ft.
Fourth – the ordinal number that tells the number four position; (also see one fourth)
Gallon – a U.S. Customary System unit used to measure liquids; gal.
Geoband – a rubber band used to make geometric shapes on a geoboard
Geoboard – a board used to make geometric shapes by placing rubber bands over pegs
Geometric Solid – a three-dimensional object (e.g., sphere, cone, cylinder, cube, pyramid)
Gram – a small metric unit used to measure weight or mass; g
Graph – a chart that displays one variable in relation to another variable using symbols, points, bars, or lines
Greater Than – more than
Page 7 of 39
Half – one of two equal parts; (also see one half)
Half Dozen – a set of six
Half Hour – 30 minutes
Half Past – 30 minutes after the hour
Height – a vertical distance
Hexagon – a six-sided figure
Hour – 60 minutes
Hour Hand - the short hand on the clock that tells what hour it is
Impossible – cannot happen
Inch – a small U.S. Customary System unit used to measure length, height, or distance; in.
Length – the distance from one end to the other end
Less Than – not as many as
Likely – probably will happen
Line – a straight path extending in both directions without end; a line is marked with an arrowhead at each end
Line of Symmetry – an imaginary line that divides a figure into two identical sides
Line Segment – a straight line usually marked with two endpoints
Liter – a metric unit used to measure capacity; l
Mathematician – one who studies the science of numbers and their operations
Measure – to determine the length, weight, height, temperature, capacity, time, or other quantifiable characteristic
Minus – a word used between numbers that means to subtract the second number from the first number
Minus Sign – the symbol for subtraction; sometimes used to indicate a negative quantity
Minute – a unit used to measure time; min
Minute Hand –the long hand on the clock that tells the number of minutes before and after the hour
Month – the period of time equal to about four weeks or 30-31 days; January, February, March, April, May, June, July, August, September, October, November, December
Morning – the time of day between sunrise and noon
Multiples of 10 – the numbers obtained by multiplying 10 by every counting number
Nickel – a U.S. coin worth five centsPage 8 of 39
Night – the time of day between sunset and sunrise when it is dark outside
Number – one or more digits representing an amount
Number Line – a line that continues in both directions without end and is marked with numbers in order from least to greatest
Number Sentence – a sentence that uses numbers and symbols but not words
O’clock – as shown on the clock
Odd – every number not divisible by 2; every number ending in 1, 3, 5, 7, or 9
One fourth – ¼; one of four equal parts
One half – ½; one of two equal parts
One sixth – ⅙; one of six equal parts
One third – ⅓; one of three equal parts
Order – to place things in a specific way, often from least to greatest
Ordinal – describing a position or an order
Ordinal Number – a number that describes position or order
Pair – two items that are usually together, such as shoes and glovet
Parallelogram – a four-sided figure with two pairs of parallel sides
Pattern – a repeating arrangement of something
Penny – a U.S. coin worth one cent
Pentagon – a five-sided figure
Pictograph – a graph that uses pictures or symbols to display information
Place Value – the value of a digit based on its position within a number
Plus Sign – the symbol for addition; sometimes used to indicate a positive quantity - +
Polygon – a closed, flat figure bounded by line segments
Pound – a U.S. Customary System unit used to measure weight (mass); lb.
Property – a rule that is true for all numbers in a set
Quarter – a U.S. coin worth 25 cents; one fourth
Rectangle – a four sided figure with four right angles
Rectangular Prism – a geometric solid with six rectangular facesPage 9 of 39
Repeating Pattern – an arrangement of items in a specific order over and over such that the next item can be predicted
Right – a direction; the opposite of left; correct
Rounding – changing a number to show the nearest ten, hundred, and so on
Row – a horizontal arrangement of items
Ruler – a tool with a straight edge that is used to measure length
Second – the ordinal number that tells the number two position; a short measure of time
Set – a collection of items
Shape – a closed form or outline
Side – a flat edge of a shape; a flat surface of an object
Single-Digit Number – a number that has only on digit
Sixth – the ordinal number that tells the number six position; (also see one sixth)
Size – the magnitude of an object relative to another
Slide – to transform a shape by moving it from one place to another on a flat surface without turning it from one place to another on a flat surface without turning it; translate
Solid – a three-dimensional object
Some, Some more – a story problem that has an addition pattern
Some, some went away – a story problem that has a subtraction pattern
Sort – to separate items into groups based on a common attribute
Sphere – a geometric solid bounded by all points that are given distance from the center point
Square – a rectangle with all sides of equal length; a four-sided figure with all sides of equal length and four right angles
Story problem – a math problem that is written as a story
Subtract – to count backwards; take away
Subtraction – an operation that deducts the value of one number from the value of another to find the difference
Sum – the answer to and addition problem
Symbol – a sign that represents a number or word
Symmetrical – having an imaginary line such that all corresponding parts on either side of the line are identical
Take away – subtract
Tally – to keep track while counting by writing small vertical and oblique marksPage 10 of 39
Temperature – the measurement by degree of hot or cold something is
Tenths – ten equal parts that combine to make one whole
Thermometer – a tool used to measure temperature
Third – the ordinal number that tells the number three position; (also see one third)
Trapezoid – a four sided figure with one pair of parallel sides
Triangle – a figure with three sides
Turn – to rotate a shape around a fixed point
Week – seven consecutive days; (also see day)
Weight – the measure of how heavy something is
Year – the time period of about 365 days required for the earth to revolve once around the sun
Page 11 of 39
Grade 2
Acute Angle – an angle that is smaller than a right angle
Addend – one of the numbers being combined in an addition problem to form the sum
Addition – an operation that combines two or more addends to find the sum
Angle – the figure formed by two rays extending from a common endpoint
Area – the number of square units needed to cover a surface
Array – an orderly arrangement of objects in the shape of a rectangle; a carton of eggs is an example of an array
Associative Property of Addition – the property that states that changing the grouping of the addends does not affect the sum
Bar Graph – a graph that shows information using parallel rows or columns
Capacity – the amount that a container can hold
Celsius – a scale for measuring temperature named for Anders Celsius; on the Celsius scale, the freezing point of water is 100 degrees
Cent symbol – the symbol for the word “cent” or “cents”
Centimeter – a small metric unit used to measure length; cm.
Certain – absolutely sure to happen
Change – the money you get back after paying for something
Circle – a shape with a perfectly round curved edge
Commutative Property of Addition – the rule that states that changing the order of the addends does not affect the sum
Commutative Property of Multiplication – the rule that states that changing the order of factors does not affect the product
Comparison Symbols – symbols that show whether a number is greater than (˃), less than (˂), or equal to (=) another number
Cone – a geometric solid with a circle on one end that connects to a point at the other end
Congruent – having the same size and shape
Coordinate Graph – a diagram containing intersecting perpendicular lines on which points are identified by pairs of numbers
Coordinates – the numbers that show the location of a point on a coordinate graph
Page 12 of 39
Cube – a geometric solid with six congruent square faces
Cup – a U.S. Customary System unit used to measure capacity; c
Cylinder – a geometric solid with congruent circles on each end
Data – information
Date – the month, day and year
Decimal Point – the symbol that separates the dollars from the cents when writing an amount of money; the symbol that separates the whole number from the decimal part of a number; the symbol that separates the ones’ place from the tenths’ place
Decrease – to become smaller; to count backward
Degree – a unit used to measure temperature or angles
Denominator – the bottom number in a fraction; shows how many parts in all
Difference – the answer to a subtraction problem
Digit – any of the symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 used to write numbers
Digital Time – the time shown on a clock using digits instead of using a dial and hands
Divide – to separate into equal groups
Division – an operation to separate a number of objects into equal groups
Dollar Sign – the symbol for an amount of U.S. money equal to 100 cents
Doubles – two of the same number
Dozen – a set of twelve
Edge – the line segment where two faces of a geometric solid meet; one side of a closed figure
Eighth – the ordinal number that tells the number eight position; (also see one eighth)
Eleventh – the ordinal number that tells the number eleven position
Endpoint – the point at the beginning or the end of a line segment
Equal – exactly the same; having the same value
Equal Chance – equal probability that something will or will not happen
Equal Groups – sets of objects having the same number or value; a way of talking about multiplication and division
Equal Parts – sections of a whole that are exactly the same size
Equal To – having the same value
Page 13 of 39
Estimate – to make a good guess about value or measurement based on given information
Even – every number divisible by 2; every number ending 0, 2, 4, 6, or 8
Expanded Form – a way of showing a number by showing the value for each digit
Face – a flat surface of a geometric solid
Fact Family – a group of addition facts and subtraction facts that all use the same three numbers; a group of multiplication facts and division facts that all use the same three numbers
Factors – the number that are multiplied in a multiplication problem
Fahrenheit – a scale for measuring temperature name for Gabriel Fahrenheit; on the Fahrenheit scale, the freezing point of water is 32 degrees and the boiling point of water is 212 degrees
Feet – more than one foot; (also see foot)
Fewer – not as many
Fewest – the least number of all
Fifth – the ordinal number that tells the number five position
First – the ordinal number that tells which one is before all the others
Flip – to turn over a figure from front to back or back to front
Foot – a U.S. Customary System unit used to measure length, height or distance; ft.
Fourth – the ordinal number that tells the number four position; (also see one fourth)
Fraction – a number that tells the number of parts (numerator) of a whole (denominator)
Full – completely filled
Gallon – a U.S. customary system unit used to measure liquids; gal
Geometric Solid – an object with three dimensions: length, height, and depth; example are cube, cone, and pyramid
Gram – a small metric unit used to measure weight; g
Graph – a chart that shows information using symbols, points, bars, or lines
Greater – more
Greater Than – more than
Greatest – more than all the others
Half – one of two equal parts; (also see one half)
Half Dozen – a set of six
Page 14 of 39
Half Hour – a measurement of time equal to 30 minutes; one half of an hour
Half Inch – one half of an inch
Half Past – a way of saying 30 minutes after the hour when telling time
Halves – two equal parts that make one whole; the plural of “half”
Heaviest – weighing more than all the others
Height – the distance from top to bottom or bottom to top
Hexagon – shape with six straight sides and six angles
Horizontal – a path that goes from left to right; from the word horizon, the line where the earth and sky meet
Hour – a measurement of time equal to 60 minutes
Hour Hand – the shorter hand on the clock that shows the hour
Impossible – cannot happen
Inch – a small U.S. Customary System unit used to measure length, height, or distance; in
Intersect – to cross
Kilogram – a metric unit used to measure weight or mass; kg
Largest – greater or more than all the others
Last – at the end
Least – less than all the others
Left – a direction; the opposite of right; a word used in subtraction problems to show what remains
Length – the distance from one end to the other end
Less – not as many
Less Likely – less than an equal chance that something will happen
Less Than – not as many as
Lightest – having less weight than all the others
Likelihood of Events – how probable it is that something will happen
Likely – probably will happen
Line of Symmetry – an imaginary line that divides a figure into two identical sides
Line Segment – a straight path usually marked with two endpoints
Page 15 of 39
Liter – a metric unit used to measure capacity; l
Longer – having more length
Mass – the amount of matter in an object found by using a scale; weight
Median – the middle number in a list of numbers arranged in order from least to greatest
Metric – a system of measurement based on tens (decimals)
Metric Units – units of measure based on tens (decimals)
Minus – a word used between numbers that means to subtract the second number from the first number
Minute – a unit used to measure time; min
Minute Hand – the longer hand on a clock that shows the number of minutes before and after the hour
Mixed Number – a number that contains both a whole number and a fraction
Mode – the number that occurs most often on the list
Month – the period of time equal to about four weeks or 30-31 days; January, February, March, April, May, June, July, August, September, October, November, December
More likely – more than an equal chance that something will happen
Most – the largest amount; greater than all the others
Multiples – numbers that are the products of multiplying a number by 1, 2, 3, 4 and so on
Multiplication – an operation to combine equal groups
Multiplication Table - a chart that shows the multiplication facts
Nickel – a U.S. coin worth five cents
Ninth – the ordinal number that tells the number nine position
Number – one or more digits showing an amount
Number Line – a straight path marked with numbers at equal spaces and arrows at each end
Oblique – a straight path that is slanted; a line neither horizontal nor vertical
Obtuse Angle – and angle that is larger than a right angle
O’clock – of or by the clock; used when the longer hand points 12
Odd – every number not divisible by 2; every number ending in 1, 3, 5, 7, or 9
One Eighth – ⅛; one of eight equal parts
One Fourth – ¼; one of four equal partsPage 16 of 39
One Half – ½; one of two equal parts
One Sixth – ⅙; one of six equal parts
One Third – ⅓; one of three equal parts
Ordinal Number – a number that describes position or order
Origin – the point of intersection of the horizontal and vertical number lines on a coordinate plane
Pair – two items that are usually together such as shows or gloves
Parallel – lines that do not cross and are always the same distance apart
Parallelogram – a shape with four straight sides that has two pairs of parallel lines
Perimeter – the distance around a shape
Perpendicular – lines that intersect to form right angles
Pictograph – a way of showing information using pictures or symbols
Plus – a word used between numbers that means to add the numbers together
Polygon – a closed, flat figure bounded by line segments
Pound – a U.S. Customary System unit used to measure weight (mass); lb
Prediction – a guess based on given information that something might or might not happen
Probability – how likely it is that something will happen
Product – the answer in a multiplication problem
Pyramid – a geometric solid with a polygon base connected to at least three triangular faces that have a common point, or vertex
Quart – a U.S. Customary System unit used to measure capacity; qt
Quarter – a U.S. coin worth 25 cents; one fourth
Quarter Hour – a measurement of time equal to 15 minutes; one fourth of an hour
Range – the difference between the least and the greatest number in a set
Rectangle – a shape with four straight sides and four right angles
Rectangular Prism – a geometric solid with six rectangular faces
Reflection - a way to transform or move a shape by flipping it from front to back or from back to front
Remainder – the part left after dividing a group of items into equal groups; R
Repeating Pattern – an arrangement of items that is shown over and overPage 17 of 39
Right – a direction; opposite of left; correct
Right Angle – an angle that measures 90 degrees; square corner
Right Triangle – a triangle with a right angle
Rotation – a way to transform or move a shape by turning it around a fixed point
Round – to change a number to show the nearest ten, hundred, and so on
Rounding – changing a number to show the nearest ten, hundred, and so on
Row – a horizontal arrangement of items
Second – the ordinal number that tells the number two position
Seventh – the ordinal number that tells the number seven position
Shape – a closed form or outline
Shorter – having less length or height
Side – a straight edge of a shape; a flat surface of an object
Sixth – the ordinal number that tells the number six position; (also see one sixth)
Size – a measurement of how large or small something is
Slide – to transform a shape by moving it from one place to another on a flat surface without turning it; translate
Smallest – having the least size s
Sort – to separate items into groups based on something they have in common
Sphere – a geometric solid that is shaped like a globe or ball
Square – a shape with four sides, all equal in length, and four right angles
Subtract – to count backward; take away
Subtraction – an operation that takes one number away from another to find the difference
Sum – the answer to an addition problem
Survey – to collect information by asking a group of people questions that have answer choices
Symmetrical - having two identical sides that can be divided by an imaginary line
Tally – to keep track while counting by writing small vertical and oblique marks
Temperature – the measurement by degree of how hot or cold something is
Tenth – the ordinal number that tells the number ten position
Page 18 of 39
Thermometer – a tool used to measure temperature
Third – the ordinal number that tells the number three position; (also see one third)
Translation – a way to transform or move a shape by sliding it to a different place
Trapezoid – a shape with four sides and only one pair of parallel sides
Triangle – a shape with three sides and three angles
Turn – to rotate a shape around a fixed point
Twelfth – the ordinal number the tells the number twelve position
Unlikely – probably will not happen
Venn Diagram – a drawing of two or more intersecting circles that shows what the sets have in common
Vertex – a point or corner of a polygon or geometric solid
Vertical – a path that goes up and down
Weekday – Monday, Tuesday, Wednesday, Thursday, or Friday
Weekend – Saturday or Sunday
Weight – the measure of how heavy something is
Whole – all parts together; complete
Yard – a U.S. Customary System unit used to measure length, height, and distance; yd
Page 19 of 39
Grade 3
Acute Angle – an angle with a measure less than 90 degrees
Addend – any number that is being added
Analog Time – time displayed on a timepiece with hour and minute hands
Angle – formed by two lines or line segments that meet or cross each other
A.M – the hours between midnight and noon
Area – the measure, in square units, of the inside of a plane figure
Array – a rectangular arrangement of objects in equal rows or columns
Bar Graph – a graph that uses bars of different heights to compare information
Base – the top or bottom of a three-dimensional figure
Capacity – the measure that tells how much liquid a container can hold
Circle – a round two-dimensional figure
Combination – a group of items. Placing these items in a different does not create a new combination
Cone – a solid figure that has a circular base and one vertex
Congruent – having the same size and shape. Congruent angles have the same measure. Congruent segments have the same length
Cube – a rectangular solid having 6 congruent square faces
Customary System – the measurement used in the United States. Its basic units are the foot, gallon, and pound
Cylinder – a three-dimensional figure with two circular bases, which are parallel and congruent
Digit – one of the ten numbers, 0 through 9. A digit can be any of these numerals: 1, 2, 3, 4, 5, 6, 7, 8, or 9.
Edge – the line segment where two faces of a solid figure meet
Equal To (=) – shows that two values are the same. For example, 10 = 10
Equation – a statement that to mathematical expressions are equal
Equivalent – having the same value
Estimate – an answer that is close to, but not equal to, an exact answer
Even Number - a number that ends in 0, 2, 4, 6, or 8
Expression – a variable, or any combination of numbers, variables, and symbols the represents a mathematical relationship. For example: 24 X 2 + 5 or 4a – 9
Page 20 of 39
Face – a plane figure that serves as one side of a solid figure
Fact Family – a set of related addition and subtraction, or multiplication and division equations using the same numbers. For example, 6+9 = 15, 15-9= 6, 9+6= 15, 15-6= 9
Factor – a whole number that divides evenly into another whole number. For example, 1, 3, 5, and 15 are factors of 15
Fraction – a number that names a part of a whole or part of a set
Function – a relation in which every input value has a unique output value
Graph – drawing that uses lines, points, pictures, or bars to show information
Greater Than ( ˃ ) – shows that one value is more than another value. For example, 10 ˃ 5
Hexagon – a polygon with 6 sides
Inequality – a mathematical sentence that contains a symbol that shows the terms on either side of the symbol are unequal. For example, 3+4 ˃ 6
Length – the distance between two points or objects. It also refers to the longer side of a rectangle
Less Than ( ˂ ) – shows that one value is less than another value. For example, 5 ˂ 10
Line – a straight path extending in both directions with no endpoints
Line of Symmetry – a line that divides a figure into two halves that are mirror images of each other
Line Segment – a part of a line with two endpoints
Mean (average) – the number found by dividing the sum of a set of numbers by the number of addends
Median – the middle number in an ordered set of data, or the average of the two middle numbers when the set has two middle numbers
Metric System – the measurement system that is based on units of 10. Its basic units are the meter, liter, and gram
Mode – the number(s) that occurs most often in a set of data
Multiples – the product of a given whole number and another whole number. For example, multiples of 4 are 4, 8, 12, 16…
Number Line – a line that shows the order of numbers
Number Sentence – an equation or inequality with numbers
Obtuse Angle – an angle with a measure more than 90 degrees
Octagon – a polygon with 8 sides
Odd Numbers – a number that ends in 1, 3, 5, 7, or 9
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Ordered Pair – a pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically.
Parallel Lines – lines that never intersect and are always the same distance apart
Parallelogram – a quadrilateral whose opposite sides are parallel and congruent
Pattern – a relationship between a set of numbers or shapes
Pentagon – a polygon with 5 sides
Perimeter – the distance around a figure
Perpendicular Lines – two lines, segments or rays that intersect to form right angles
Pictograph – a graph that uses pictures to show and compare information
P.M. – the hours between noon and midnight
Place Value – the value indicated by the position of a digit in a number
Place Value Chart – a chart used to show the values of the digits in a number
Pyramid – a solid figure with a polygon base and triangular that met at a single point (vertex)
Quadrilateral – a polygon with 4 sides
Ray – a part of a line that has one endpoint and continues without end in one direction
Rectangle – a two-dimensional figure with 4 sides and 4 square corners
Rectangular Prism – a solid figure in which all 6 faces are rectangles
Reflection (flip) – a transformation that produces the mirror image of a figure
Repeated Addition – adding the same number over and over
Rhombus – a parallelogram with 4 equal sides
Right Angle – an angle that measures exactly 90 degrees
Right Triangle – a triangle that has a 90 degree angle
Rotation (turn) – a movement of a figure that turns that figure around a fixed point
Rounding – expressing a number to the nearest 10, 100, 1,000 and so on
Ruler – a tool used to measure length
Sphere – a solid figure with all points the same distance from the center
Square – a rectangle with all 4 sides the same length
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Standard Form – a number written with commas used to separate groups of three digits. For example, the number 2, 385 is written in standard form
Symmetrical – a figure can be folded in half, so that the two halves match exactly
Table – an information display that uses rows and columns to show information
Tally Chart – a table that uses tally marks to record data
Three-Dimensional Figure – a figure that has length, width, and height
Translation (slide) – a movement of a figure to a new position without turning or flipping it
Trapezoid – a quadrilateral with exactly one pair of parallel sides
Triangle – a closed figure with 3 sides and 3 vertices
Two-Dimensional Figure – a figure that has length and width, but no height
Vertex – a point where lines, rays, sides of a polygon or edges of a polyhedron meet (corner)
Volume (capacity) – the amount of space (in cubic units) that a solid figure can hold
Weight – a measure of how heavy something is
Page 23 of 39
Grade 4
Acute Angle – an angle with a measure less than 90 degrees
Addend – any number that is being added
Analog Time – time displayed on a timepiece with hour and minute hands
Area – the measure, in square units, of the inside of a plane figure
Array – a rectangular arrangement of objects in equal rows or columns
Axis – a perpendicular ray on a grid; plural axes
Bar Graph – a graph that uses bars of different heights to compare information
Base – the top or bottom of a three-dimensional figure
Capacity – the measure that tells how much liquid a container can hold
Circle – a round two-dimensional figure
Closed Figure – a figure with no gaps or opening
Combination – a group of items. Placing these items in a different does not create a new combination
Common Denominator – denominator that is the same number in two or more fractions
Cone – a solid figure that has a circular base and one vertex
Congruent – having the same size and shape. Congruent angles have the same measure. Congruent segments have the same length
Counting Number – the numbers 1, 2, 3, 4, 5, 6, 7,…
Cube – a rectangular solid having 6 congruent square faces
Cylinder – a three-dimensional figure with two circular bases, which are parallel and congruent
Decimal – a number with a decimal point
Denominator – in a fraction, the number below the fraction bar
Dividend – the number that is being divided
Divisor – the number that divides the dividend
Edge – the line segment where two faces of a solid figure meet
Elapsed Time – the amount of time that passes between two events
Endpoint – a point that marks the beginning or end of a line segment or the beginning of a ray
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Equal To (=) – shows that two values are the same. For example, 10 = 10
Equation – a statement that to mathematical expressions are equal
Equivalent – having the same value
Estimate – an answer that is close to, but not equal to, an exact answer
Expanded Form – a number written as the sum of the products of each digit and its place value. For example, the number 314 in expanded form is 300 + 10 + 4.
Expression – a variable, or any combination of numbers, variables, and symbols the represents a mathematical relationship. For example: 24 X 2 + 5 or 4a – 9
Face – a plane figure that serves as one side of a solid figure
Fact Family – a set of related addition and subtraction, or multiplication and division equations using the same numbers. For example, 6+9 = 15, 15-9= 6, 9+6= 15, 15-6= 9
Factor – a whole number that divides evenly into another whole number. For example, 1, 3, 5, and 15 are factors of 15
Fraction – a number that names a part of a whole or part of a set
Function – a relation in which every input value has a unique output value
Geometric Pattern – a pattern made up of shapes
Graph – drawing that uses lines, points, pictures, or bars to show information
Greater Than ( ˃ ) – shows that one value is more than another value. For example, 10 ˃ 5
Hexagon – a polygon with 6 sides
Inequality – a mathematical sentence that contains a symbol that shows the terms on either side of the symbol are unequal. For example, 3+4 ˃ 6
Input-Output Table – a table that shows a number, a rule, and a second number; the second number is found by applying the rule to the first number
Length – the distance between two points or objects. It also refers to the longer side of a rectangle
Less Than ( ˂ ) – shows that one value is less than another value. For example, 5 ˂ 10
Like Denominators – see common denominators
Line – a straight path extending in both directions with no endpoints
Line of Symmetry – a line that divides a figure into two halves that are mirror images of each other
Mean (average) – the number found by dividing the sum of a set of numbers by the number of addends
Median – the middle number in an ordered set of data, or the average of the two middle numbers when the set has two middle numbers
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Mixed Number – a number that has a whole number part and a fraction part
Mode – the number(s) that occurs most often in a set of data
Multiples – the product of a given whole number and another whole number. For example, multiples of 4 are 4, 8, 12, 16…
Number Sentence – an equation or inequality with numbers
Numerator – in a fraction, the number above the fraction bar
Obtuse Angle – an angle with a measure more than 90 degrees
Octagon – a polygon with 8 sides
Ordered Pair – a pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically.
Origin – the point on a grid where the x-axis and the y-axis meet. The ordered pair that describes the origin is (0,0)
Parallel Lines – lines that never intersect and are always the same distance apart
Parallelogram – a quadrilateral whose opposite sides are parallel and congruent
Pattern – a relationship between a set of numbers or shapes
Pentagon – a polygon with 5 sides
Perimeter – the distance around a figure
Perpendicular Lines – two lines, segments or rays that intersect to form right angles
Pictograph – a graph that uses pictures to show and compare information
Place Value – the value indicated by the position of a digit in a number
Place Value Chart – a chart used to show the values of the digits in a number
Point – particular place or location
Polygon – a closed figure made up of line segments that meet at their endpoints
Prediction – a statement of something that may happen in the future, based on information
Pyramid – a solid figure with a polygon base and triangular that met at a single point (vertex)
Quadrilateral – a polygon with 4 sides
Quotient – the result of division
Ray – a part of a line that has one endpoint and continues without end in one direction
Rectangle – a two-dimensional figure with 4 sides and 4 square corners
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Rectangular Prism – a solid figure in which all 6 faces are rectangles
Reflection (flip) – a transformation that produces the mirror image of a figure
Rhombus – a parallelogram with 4 equal sides
Right Angle – an angle that measures exactly 90 degrees
Right Triangle – a triangle that has a 90 degree angle
Rotation (turn) – a movement of a figure that turns that figure around a fixed point
Rounding – expressing a number to the nearest 10, 100, 1,000 and so on
Scale – an arrangement of numbers that increase by uniform intervals
Side of a Polygon – one of the line segments that make up a polygon
Sphere – a solid figure with all points the same distance from the center
Square – a rectangle with all 4 sides the same length
Standard Form – a number written with commas used to separate groups of three digits. For example, the number 2, 385 is written in standard form
Table – an information display that uses rows and columns to show information
Tally Chart – a table that uses tally marks to record data
Three-Dimensional Figure – a figure that has length, width, and height
Translation (slide) – a movement of a figure to a new position without turning or flipping it
Trapezoid – a quadrilateral with exactly one pair of parallel sides
Triangle – a closed figure with 3 sides and 3 vertices
Triangular Pyramid – a pyramid with a triangular base
Vertex – a point where lines, rays, sides of a polygon or edges of a polyhedron meet (corner)
Vertex of a polygon – the common point where two side meet in a polygon
Vertex of a three-dimensional figure – the common point where three edges meet in a three-dimensional figure
Volume (capacity) – the amount of space (in cubic units) that a solid figure can hold
Whole Numbers – the counting numbers plus zero; 1, 2, 3, 4 …
X- axis – the horizontal number line in a grid
X-coordinate – the first number in an ordered pair
Y-axis – the vertical number line in a gridPage 27 of 39
Y-coordinate – the second number in an ordered pair
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Grade 5
Acute Angle – an angle with a measure less than 90 degrees
Acute Triangle-a triangle that has three acute angles
Area – the measure, in square units, of the inside of a plane figure
Axis (axes) – a perpendicular ray on a grid; plural axes
Bar Graph – a graph that uses bars of different heights to compare information
Base – the top or bottom of a three-dimensional figure
Certain Outcome – an outcome that will definitely occur every time
Chord – a line segment whose endpoints are on a circle
Circle – a round two-dimensional figure
Circle Graph – a data display that uses a circle divided into parts to represent different categories
Circumference – the distance around a circle
Combination – a group of items. Placing these items in a different does not create a new combination
Common Denominator – denominator that is the same number in two or more fractions
Composite Number – a whole number having more than two factors
Coordinates- the numbers in an ordered pair
Cube – a rectangular solid having 6 congruent square faces
Decimal – a number with a decimal point
Denominator – in a fraction, the number below the fraction bar
Diameter – a line segment that has endpoints on a circle and passes through the center of the circle
Dividend – the number that is being divided
Divisor – the number that divides the dividend
Edge – the line segment where two faces of a solid figure meet
Equally Likely – describes events that have the same probability of happening
Equation – a statement that to mathematical expressions are equal
Equilateral Triangle – a triangle that has three sides of the same length
Equivalent – having the same value
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Equivalent Rates – rates that are equal, e.g., 60 miles per hour = 120 miles per two hours
Estimate – an answer that is close to, but not equal to, an exact answer
Expanded Form – a number written as the sum of the products of each digit and its place value. For example, the number 314 in expanded form is 300 + 10 + 4.
Expression – a variable, or any combination of numbers, variables, and symbols the represents a mathematical relationship. For example: 24 X 2 + 5 or 4a – 9
Face – a plane figure that serves as one side of a solid figure
Factor – a whole number that divides evenly into another whole number. For example, 1, 3, 5, and 15 are factors of 15
Fraction – a number that names a part of a whole or part of a set
Geometric Pattern – a pattern made up of shapes
Graph – drawing that uses lines, points, pictures, or bars to show information
Greatest Common Factor – the largest factor that 2 or more numbers have in common
Heptagon –a polygon with 7 sides
Histogram – a bar graph in which the labels for the bars are numerical intervals
Hypotenuse – the longest side of a right triangle (which is also the side opposite of the right angle)
Impossible Outcome – an outcome that can never occur
Inequality – a mathematical sentence that contains a symbol that shows the terms on either side of the symbol are unequal. For example, 3+4 ˃ 6
Integer – positive whole numbers, their opposites, and zero, e.g.… -3, -2, -2, -1, 0, 1, 2, 3,…
Intersecting Lines – lines that meet or cross at a point
Isosceles Triangle – a triangle that has at least two sides of the same length
Least Common Denominator – the least common multiple of the denominators in two or more fractions
Least Common Multiple – the smallest number, other than zero, that is a common multiple of two or more numbers
Least Likely – a probability term that describes an event that is less likely to happen than any other event
Leg (of a right triangle) – either of the two sides that form the right angle in a right triangle
Line – a straight path extending in both directions with no endpoints
Line Graph-a data display that uses a line to show how something has changed over a period of time, or a trend
Line of Symmetry – a line on which a figure could be folded so that both halves match exactly
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Line Plot – a graph showing the frequency of data on a number line
Line Segment – part of a line that has two endpoints
Mean (average) – the number found by dividing the sum of a set of numbers by the number of addends
Median – the middle number in an ordered set of data, or the average of the two middle numbers when the set has two middle numbers
Measures of Central Tendency – measures that give information about a set of data such as median, mode, and mean
Mixed Number – a number that has a whole number part and a fraction part
Mode – the number(s) that occurs most often in a set of data
Most Likely –a probability term that describes an event that is more likely to happen than any other event
Multiple – a number that is a result of multiplying a given number by a counting number
Negative Number – a number less than zero
Nonagon – a polygon with 9 sides
Numerator – in a fraction, the number above the fraction bar
Obtuse Angle – an angle with a measure more than 90 degrees
Obtuse Triangle – a triangle that has one obtuse angle
Ordered Pair – a pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically.
Origin – the point on a grid where the x-axis and the y-axis meet. The ordered pair that describes the origin is (0,0)
Outcome – the result of a probability experiment
Parallel Lines – lines that never intersect and are always the same distance apart
Parallelogram – a quadrilateral whose opposite sides are parallel and congruent
Perimeter – the distance around a figure
Perpendicular Lines – lines that cross each other at a right angle
Pictograph – a graph that uses pictures to show and compare information
Plane – a flat surface that extends infinitely in all directions
Polygon – a closed figure made up of line segments that meet at their endpoints
Prime Number – a whole number other than 1 that has exactly two factors, 1 and itself
Probability – the likelihood that an event will occur
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Quadrants – the four regions of a coordinate plane that are separated by the axes
Quadrilateral –a polygon with four sides and four angles
Quotient – the result of division
Radius –a line segment that has one endpoint on a circle and the other endpoint at the center of the circle
Range – the difference between the greatest and least numbers in a set of data
Rate – a ratio that compares two quantities having different
Ratio – a comparison of two numbers using divsion
Ray – a part of a line that has one endpoint and continues without end in one direction
Rectangle – a two-dimensional figure with 4 sides and 4 square corners
Rectangular Prism – a solid figure in which all 6 faces are rectangles
Rectangular Pyramid – a three dimensional figure with one rectangular base and four triangular faces
Reflection (flip) – a transformation that produces the mirror image of a figure
Regular Polygon - a polygon that has all sides congruent and all angles congruent
Repeating Decimal – a decimal that has a repeating sequence of numbers after the decimal point
Rhombus – a parallelogram with 4 equal sides
Right Angle – an angle that measures exactly 90 degrees
Right Triangle – a triangle that has a 90 degree angle
Rotation (turn) – a movement of a figure that turns that figure around a fixed point
Rounding – expressing a number to the nearest 10, 100, 1,000 and so on
Scalene Triangle – a triangle with all sides of different lengths
Similar Polygons – polygons that have the same shape, but not necessarily the same size. Corresponding sides of similar polygons are proportional
Square – a rectangle with all 4 sides the same length
Square Pyramid – a three-dimensional figure with one square base and four triangular faces
Straight Angle – an angle with a measure of 180 degrees
Symmetry – a figure has symmetry if its parts match exactly when folded in half
Term(s) – part(s) of a rate, e.g.: in the rate 60 miles per hour, 60 miles and one hour are the terms
Terminating Decimal – a decimal that contains a finite number of digitsPage 32 of 39
Three-Dimensional Figure – a figure that has length, width, and height
Transformation – the moving of a figure by a translation (slide), rotation (turn) or reflection (flip)
Translation (slide) – a movement of a figure to a new position without turning or flipping it
Trapezoid – a quadrilateral with exactly one pair of parallel sides
Triangle – a closed figure with 3 sides and 3 vertices
Unit Price-the price of a single item or amount
Unit Rate - a rate with the second term being one unit
Variable – a letter that stands for an unknown number in a mathematical expression or sentence
Venn Diagram – a diagram that shows relationships among sets of objects
Vertex – a point where lines, rays, sides of a polygon or edges of a polyhedron meet (corner)
Whole Numbers – the counting numbers plus zero; 1, 2, 3, 4 …
X- axis – the horizontal number line in a grid
X-coordinate – the first number in an ordered pair
Y-axis – the vertical number line in a grid
Y-coordinate – the second number in an ordered pair
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Grade 6
Tape diagram. A drawing that looks like a segment of tape, used to illustratenumber relationships. Also known as a strip diagram, bar model, fraction strip, orlength model
Integer. A number expressible in the form a or –a for some whole number a.
Median. A measure of center in a set of numerical data. The median of a list ofvalues is the value appearing at the center of a sorted version of the list—or themean of the two central values, if the list contains an even number of values.Example: For the data set {2, 3, 6, 7, 10, 12, 14, 15, 22, 90}, the median is 11.
Mean. A measure of center in a set of numerical data, computed by adding thevalues in a list and then dividing by the number of values in the list.4 Example:For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the mean is 21.
Line plot. A method of visually displaying a distribution of data values whereeach data value is shown as a dot or mark above a number line. Also known as adot plot.3
Box plot. A method of visually displaying a distribution of data values by usingthe median, quartiles, and extremes of the data set. A box shows the middle50% of the data.1
Interquartile Range. A measure of variation in a set of numerical data, theinterquartile range is the distance between the first and third quartiles ofthe data set. Example: For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, theinterquartile range is 15 – 6 = 9. See also: first quartile, third quartile.
Mean absolute deviation. A measure of variation in a set of numerical data,computed by adding the distances between each data value and the mean, thendividing by the number of data values. Example: For the data set {2, 3, 6, 7, 10,12, 14, 15, 22, 120}, the mean absolute deviation is 20.
Ratio. A comparison of two numbers by division. The ratio of 2 to 4 can be stated as 2 out of 4, 2:4, or 24
Unit rate. A rate simplified so that it has a demoninator of 1
Percent. A ratio that compares a number to 100
Greatest common factor. The greatest number that is a factor of two or more numbers
Least common multiple. The least of the nonzero common multiples of two or more numbers. The LCM of 4 and 6 is 12Distributive property. To multiple a sum by a number, multiple each number in parentheses by the number outside the parentheses
Page 34 of 39
Positive number. Any number that is greater than zero
Negative number. A number less than zero
Opposites. Two numbers with the same absolute but different signs
Zero pair. A positive tile paired with a negative tile
Absolute value. The distance a number is from zero on the number line
Coefficient. The numerical part of a term that contains a variable
Order of operation. The rules to follow when more than one operation is used in an expression
Substitution. Use algebraic methods to find an exact solution of a system of equations
Dependent variable. The variable in a relation with the value that depends on the value of the independent variable
Nets. A two-dimensional pattern for a three- dimensional figure
Mode. The number or numbers that occur most often in a set of data
Range. The range of a relation is the set of all y-coordinates from each ordered pair
Histogram. A histogram uses bars to display numerical data that have been organized into equal intervals.
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Grade 7Additive inverses. Two numbers whose sum is 0 are additive inverses of oneanother. Example: 3/4 and – 3/4 are additive inverses of one another because3/4 + (– 3/4) = (– 3/4) + 3/4 = 0.
Multiplicative inverses. Two numbers whose product is 1 are multiplicativeinverses of one another. Example: 3/4 and 4/3 are multiplicative inverses of oneanother because 3/4 × 4/3 = 4/3 × 3/4 = 1.
Probability. A number between 0 and 1 used to quantify likelihood for processesthat have uncertain outcomes (such as tossing a coin, selecting a person atrandom from a group of people, tossing a ball at a target, or testing for amedical condition).
Proportion. A statement of equality of two or more ratios
Simple interest. The amount of money paid or earned for the use of money I-prt
Markup. The amount the price of an item is increased above the price of the store paid for an item
Percent of increase. The ratio of an amount of increase to the original amount, expressed as a percent
Percent of decrease. The ratio of an amount of decrease to the previous amount, expressed as a percent. A negative percent of change
Scale drawing. A drawing that is used to represent an object that is too large or too small to be drawn at actual size.
Circumference. The distance around a circle
Supplementary angles. Two angles are supplementary if the sum of their measures is 180 degrees.
Complementary angles. Two angles are complementary if the sum of their measures is 90 degrees.
Vertical angles. Two pairs of opposite angles formed by two intersecting line. The angles formed are congruent.
Adjacent angles. Two angles that have the same vertex, share a common side, and do not overlap
Surface area. The sum of the areas of all the surfaces of a 3-dimensional figure
Sample population. A subgroup or subset of a population used to represent the whole population
Random. Outcomes occur at random if each outcome is equally likely to occur
Frequency. How often something occursPage 36 of 39
Simple event. One outcome or a collection of outcomes.
Compound events. Two or more simple events
Tree diagram. A diagram used to show the total number of possible outcomes
Sales tax. tax on receipts from sales, usually added to the selling price by the seller.
Markdown. the amount by which a price is reduced.
Gratuities. a gift of money, over and above payment due for service, as to a waiter or bellhop; tip:
Commissions. with commission serving as partial or full pay for work done
Simulation. examination of a problem often not subject to direct experimentation by means of a simulating device
Plane sections. An area created by a plane cutting through a solid
Percent error. Comparing a guess or estimate to an exact value.
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Grade 8Terminating decimal. A decimal is called terminating if its repeating digit is 0.
Repeating decimal. The decimal form of a rational number. See also: terminatingdecimal.
Congruent. Two plane or solid figures are congruent if one can be obtained fromthe other by rigid motion (a sequence of rotations, reflections, and translations).
Dilation. A transformation that moves each point along the ray through thepoint emanating from a fixed center, and multiplies distances from the center bya common scale factor.
Scatter plot. A graph in the coordinate plane representing a set of bivariatedata. For example, the heights and weights of a group of people could bedisplayed on a scatter plot.5
Bivariate data. Pairs of linked numerical observations. Example: a list of heightsand weights for each player on a football team.
Irrational number. Numbers that can’t be expressed as terminating or repeating decimals
Integer exponent. An exponent that is an integer
Square root. One of two equal factors of a number
Cube root. One of three equal factors of a number
Radical. A symbol used to indicate a nonnegative square root
Scientific notation. A number of a form a X 10n, where 1 ≤ a < 10 and n is an integer
Slope. The ratio of the change in the y coordinates to the corresponding change in the x coordinates as you move from one point to another along a line
y-coordinate. The coordinate at which a graph intersects the y axis
slope intercept form. An equation of the form y=mx + b where m is the slope and b is the y intercept
linear equation. An equation in the form Ax + By = C whose graph is a straight line
like terms. Terms with the same variable
simultaneous linear equations. A set of equations with the same variables
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equations. A mathematical sentence that contains an equal sign
function. A relation in which each element of the domain is paired with exactly one element of the range
input. Domain of the function
output. Range of the function
non-linear functions. A function with a graph that is not a straight line
rate of change. A change in one quantity with respect to another quantity
rotation. A transformation where a figure is turned around a fixed point
reflection. A transformation where a figure is flipped over a line
translation. A transformation where a figure is slid from one position to another without being turned.
Similar figures. Figures that have the same shape but not necessarily the same size
Transversal. A line that intersect two parallel line to form 8 angles
Corresponding angles. Angles that have the same position on two different parallel lines cut by a transversal
Interior. Four of the angles formed by the transversal and two parallel lines
Exterior. Four of the angles formed by the transversal that lie outside the two parallel lines
Pythagorean theorem. If a triangle is a right triangle then the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs
Cone volume formula. The volume of a cone with radius r is one third the area of the base pi x r2 times height h
Cylinder volume formula. the volume of a cylinder with radius r is the area of the base B times the height h
Sphere volume formula. the volume of the sphere is 23 (2 x pi r3)
Outlier. Data that are more than 1.5 times the interquartile range beyond the quartiles.
Positive correlation. As x increases y increases
Negative correlation. As x increases y decreases
Line of best fit. On a scatter plot a line drawn that is very close to most of the data pointsPage 39 of 39
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