Vocabulary Grades K-6
Grade K
Topic 1
Lesson 1
Lesson 3
Lesson 4
one
two
three
count
number
four
five
Topic 2
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 6
Lesson 7
Lesson 8
Lesson 9
more (than)
fewer (than)
same as
same number of
column
row
1 more
2 more
1 fewer (than)
2 fewer (than)
zero
none
as many
order
first
second
third
fourth
fifth
fewest
most
Topic 3
Lesson 1
six
Lesson 3
Lesson 5
Lesson 7
seven
eight
nine
ten
growing pattern
Topic 4
Lesson 1
Lesson 9
greater
less
order
number line
forward
backward
Topic 5
Lesson 1
Lesson 2
Lesson 3
Lesson 4
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twenty
Topic 6
Lesson 2
Lesson 3
Lesson 5
about
hundred chart
row
column
count by 2s
count by 5s
count by 10s
Topic 7
Lesson 1
Lesson 3
Lesson 4
Lesson 5
Lesson 6
number story
join
in all
all together
add
plus sign
equal sign
sum
addition
sentence
Topic 8
Lesson 1
Lesson 2
lift
separate
take away
Lesson 5
Lesson 6
Lesson 7
minus sign (-)
subtract
difference
subtraction
sentence
Topic 9
Lesson 1
whole
part
Lesson 3
How many more?
Lesson 1
double ten-frame
set
Lesson 2
length
shorter (than)
longer (than)
as long as (same length as)
longest
shortest
height
taller (than)
as tall as
tallest
holds more
holds less
empty
full
most
least
weight
lighter (than)
weighs less
heavier (than)
Topic 10
Topic 11
Topic 12
Lesson 3
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Topic 13
Lesson 1
Lesson 2
Lesson 5
Lesson 6
Lesson 7
same (alike)
different
sort
does not belong
sorting rule
real graph
picture graph
Topic 14
Lesson 1
rectangle
side
corner
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
square
circle
triangle
hexagon
cone
cylinder
sphere
cube
flat surface
Topic 15
Lesson 1
Lesson 2
Lesson 3
Lesson 4
inside (in)
outside (out)
above (over)
below (under)
on (top of)
in front of
behind
next to
beside
left
right
Topic 16
Lesson 1
Lesson 3
same size
same shape
roll
stack
slide
Step-Up to Grade 1 Lessons Vocabulary
Lesson 1
add, sum, addition sentence, plus (+), equals(=)
Lesson 2
join
Lesson 3
order, addend
Lesson 4
subtract, difference, subtraction sentence, minus sign, equal sign
Lesson 5
take away
Lesson 6
fact family
Lesson 7
tens
Lesson 9
sort, side, corner
Lesson 10
flat surface, vertex (vertices)
Grade 1
Topic 1
Lesson 2
Lesson 3
Lesson 5
Lesson 6
Lesson 7
in all
inside
outside
part
whole
double
plus (+)
add
sum
addition sentence
equals (=)
join
order
addend
Topic 2
Lesson 1
Lesson 4
Lesson 5
Lesson 6
Lesson 10
missing part
subtract
difference
subtraction sentence
minus sign
equal sign
take away
compare
same amount
Topic 4
Lesson 3
Lesson 6
near double
2 less than
1 less than
0 less than
Lesson 2
Lesson 3
doubles plus 1
doubles plus 2
Lesson 3
Lesson 4
related facts
fact family
Lesson 4
Lesson 5
digit
row
column
skip count
Lesson 2
tens
Topic 5
Topic 6
Topic 7
Topic 8
Lesson 3
Lesson 5
ones
digit
break apart a ten
Topic 9
Lesson 1
Lesson 3
1 more
1 less
10 more
10 less
equal to (=)
less than
greater than
Topic 10
Lesson 5
regroup
Lesson 5
regroup
Lesson 1
longest
shortest
taller
shorter
estimate
measure
Topic 11
Topic 12
Lesson 2
Lesson 3
Topic 13
Lesson 1
Lesson 3
Lesson 4
hour hand
hour
minute hand
minute
o’clock
half hour
schedule
Topic 14
Lesson 2
Lesson 3
Lesson 4
picture graph
bar graph
tally mark
data
Lesson 1
plane shapes
hexagon
trapezoid
sort
side
corner
solid figure
cube
rectangular prism
sphere
Topic 15
Lesson 3
Lesson 6
Lesson 7
Lesson 9
cylinder
cone
flat surface
vertex (vertices)
pyramid
Topic 16
Lesson 1
Lesson 3
equal parts
halves
fourths
quarters
half of
fourth of
quarter of
two of
four of
Step-Up to Grade 2 Lessons Vocabulary
Lesson 1
hundreds, thousand
Lesson 3
expanded form, standard form
Lesson 4
compare, greater than (>), less than (<)
Lesson 8
length, width, height, inch (in.), nearest inch
Lesson 9
centimeter (cm), nearest centimeter
Lesson 10
unit, foot (ft), yard (yd), feet (ft)
Grade 2
Topic 1
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
part
whole
add
sum
addition sentence
plus (+)
equals (=)
join
subtract
difference
subtraction sentence
minus (-)
separate
more
fewer
related
fact family
Topic 2
Lesson 2
Lesson 3
Lesson 4
Lesson 7
doubles
near doubles
addend
number sentence
Lesson 2
array
Lesson 2
digits
number word
> (greater than)
< (less than)
= (equal to)
before
after
even
odd
Topic 4
Topic 5
Lesson 3
Lesson 4
Lesson 6
Topic 6
Lesson 1
Lesson 2
mental math
tens digit
next ten
Topic 8
Topic 10
Lesson 1
Lesson 1
Lesson 3
regroup
hundreds
thousand
expanded form
Lesson 7
Lesson 8
standard form
number word
compare
order
Topic 12
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 6
Lesson 7
sphere
solid figure
pyramid
flat surface
cylinder
face
cone
edge
cube
vertex (vertices)
rectangle
prism
plane shapes
circle
square
triangle
rectangle
polygon
angle
side
quadrilateral
pentagon
hexagon
trapezoid
parallelogram
rows
columns
equal
unequal
halves
thirds
fourths
Topic 13
Lesson 1
Lesson 2
half-dollar
quarter
dime
nickel
penny
coins
cents (¢)
greatest value
Lesson 5
least value
dollar bill
dollar coin
dollar sign
decimal point
tally mark
Lesson 3
estimate
Lesson 1
Lesson 2
unit
length
inch (in.)
width
height
nearest inch
centimeter (cm)
nearest centimeter
foot (ft)
yard (yd)
meter (m)
Lesson 3
Topic 14
Topic 15
Lesson 3
Lesson 4
Lesson 5
Topic 16
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
minute hand
minute
hour hand
hour
half hour
quarter past
half past
quarter to
bar graph
data
Line Plot
symbol
pictograph
Step-Up to Grade 3 Lessons Vocabulary
Lesson 3
divide, divided by (÷), division sentence
Lesson 5
fraction
Lesson 7
set
Lesson 9
polygon, triangle, side, quadrilateral, vertex, pentagon, hexagon,
octagon
Grade 3
Topic 1
Lesson 1
Lesson 3
Lesson 6
Lesson 7
digits
place value
standard form
expanded form
word form
period
compare
order
Topic 2
Lesson 1
Lesson 2
Lesson 5
Lesson 6
Lesson 8
addends
sum
Commutative (Order) Property of Addition
Associative (Grouping) Property of Addition
Identity (Zero) Property of Addition
fact family
difference
round
estimate
compatible numbers
equation
Topic 4
Lesson 1
Lesson 2
Lesson 3
multiplication
factors
product
array
Commutative (Order) Property of Multiplication
Topic 5
Lesson 1
Lesson 3
Lesson 4
multiples
Identity (One) Property of Multiplication
Zero Property of Multiplication
multiple
Lesson 1
Lesson 6
Distributive Property
Associative (Grouping) Property of Multiplication
Lesson 1
division
Lesson 1
dividend
divisor
quotient
Lesson 1
halves
Topic 6
Topic 7
Topic 8
Topic 9
Lesson 2
Lesson 4
Lesson 5
Lesson 6
thirds
fourths
fifths
sixths
eighths
tenths
twelfths
fraction
unit fraction
numerator
denominator
unit fraction
mixed numbers
benchmark fractions
Topic 10
Lesson 5
equivalent fractions
simplest form
Lesson 1
point
line
line segment
intersecting lines
parallel lines
ray
angle
vertex (of an angle)
right angle
perpendicular
acute angle
obtuse angle
polygon
side
vertex (of a polygon)
diagonal
triangle
quadrilateral
pentagon
hexagon
octagon
decagon
equilateral triangle
isosceles triangle
scalene triangle
right triangle
acute triangle
obtuse triangle
Topic 11
Lesson 2
Lesson 3
Lesson 4
Lesson 5
trapezoid
parallelogram
rectangle
rhombus
square
Lesson 1
Lesson 4
hour
half hour
quarter hour
minute
seconds
A.M.
P.M.
elapsed time
Lesson 1
Lesson 2
perimeter
mile
Lesson 1
Lesson 2
area
square unit
Lesson 1
capacity
cup
pint
quart
gallon
milliliter (mL)
liter (L)
mass
gram (g)
kilogram (kg)
weight
ounce
pound
ton
Topic 12
Topic 13
Topic 14
Topic 15
Lesson 2
Lesson 3
Lesson 4
Topic 16
Lesson 1
Lesson 3
line plot
pictograph
key
bar graph
scale
Step-Up to Grade 4 Lessons Vocabulary
Lesson 2
partial products
Grade 4
Topic 1
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 7
array
product
factors
multiple
Commutative Property of Multiplication
Zero Property of Multiplication
Identity Property of Multiplication
Distributive Property
inverse operations
fact family
Topic 2
Lesson 1
repeating pattern
Lesson 1
digits
place value
standard form
expanded form
word form
compare
Topic 3
Lesson 3
Topic 4
Lesson 1
Lesson 4
breaking apart
compensation
counting on
Commutative Property of Addition
Associative Property of Addition
Identity Property of Addition
inverse operations
Lesson 3
Lesson 4
partial products
compensation
Lesson 4
compatible numbers
Lesson 4
remainder
Lesson 2
prime number
composite number
fraction
equivalent fractions
numerator
denominator
benchmark fractions
Topic 5
Topic 7
Topic 9
Topic 11
Lesson 4
Lesson 6
Topic 12
Lesson 6
mixed number
improper fraction
Lesson 1
Lesson 9
unit fraction
tenth
hundredth
decimal point
Lesson 1
inch
foot
yard
mile
capacity
weight
ounce
pound
ton
millimeter
centimeter
decimeter
meter
kilometer
milliliter
liter
mass
gram
kilogram
Topic 13
Topic 14
Lesson 2
Lesson 3
Lesson 6
Lesson 7
Lesson 8
Topic 15
Lesson 4
line plot
Lesson 1
point
line
plane
parallel lines
intersecting lines
perpendicular lines
line segment
ray
angle
right angle
acute angle
obtuse angle
straight angle
degree
unit angle
Topic 16
Lesson 2
Lesson 3
Lesson 5
Lesson 7
Lesson 8
Lesson 9
Lesson 10
angle measure
protractor
polygon
side
vertex
triangle
quadrilateral
pentagon
hexagon
octagon
equilateral triangle
isosceles triangle
scalene triangle
right triangle
acute triangle
obtuse triangle
rhombus
trapezoid
parallelogram
rectangle
square
symmetric
line of symmetry
Step-Up to Grade 5 Lessons Vocabulary
Lesson 1
distributive property
Lesson 2
variable, algebraic expression
Lesson 5
rounding
Lesson 8
reciprocals
Lesson 10
volume, cubic unit
Grade 5
Topic 1
Lesson 1
Lesson 4
digits
value
standard form
expanded form
word form
equivalent decimals
Topic 2
Lesson 1
Lesson 2
Commutative Property
Associative Property
compatible numbers
compensation
rounding
Topic 3
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 7
Commutative Property of Multiplication
Associative Property of Multiplication
Identity Property of Multiplication
Zero Property of Multiplication
factors
product
multiple
underestimate
overestimate
exponential notation
exponent
base
standard form
expanded form
squared
cubed
power
Distributive Property
partial products
Topic 4
Lesson 1
dividend
divisor
quotient
Lesson 1
variable
Algebraic
Expression
order of operations
corresponding
sequence
Topic 8
Lesson 2
Lesson 7
Lesson 8
term
algebraic expression
variable
Topic 9
Lesson 1
Lesson 2
Lesson 3
Lesson 5
Lesson 6
Lesson 7
equivalent fractions
simplest form
benchmark fraction
common multiple
least common multiple (LCM)
common denominator
least common denominator (LCD)
Topic 10
Lesson 1
proper fraction
improper fraction
mixed number
Lesson 7
resizing
scaling
reciprocal
Topic 11
Lesson 9
Topic 12
Lesson 1
Lesson 4
three-dimensional
cube
face
edge
vertex (plural: vertices)
prism
cylinder
cone
pyramid
volume
cubic unit
Topic 14
Lesson 1
Lesson 2
line plot
outlier
survey
data
sample
frequency table
line plot
Topic 15
Lesson 1
polygon
regular polygon
triangle
quadrilateral
pentagon
hexagon
Lesson 2
Lesson 3
Lesson 6
octagon
equilateral triangle
isosceles triangle
scalene triangle
right triangle
acute triangle
obtuse triangle
parallelogram
trapezoid
rectangle
rhombus
square
generalization
Topic 16
Lesson 1
coordinate grid
x-axis
y-axis
origin
ordered pair
x-coordinate
y-coordinate
Step-Up to Grade 6 Lessons Vocabulary
Lesson 1
ratio, terms
Lesson 2
rate, unit rate
Lesson 3
proportions
Lesson 7
greatest common factor (GCF)
Lesson 8
input/output table
Lesson 9
Commutative Property of Addition, Commutative Property of
Multiplication, Associative Property of Addition, Associative Property
of Multiplication, Identity Property of Addition, Identity Property of
Multiplication
Grade 6
Topic 1
Lesson 1
Lesson 3
Lesson 4
expanded form
trillion
base
exponent
power
exponential form
decimal
Topic 2
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 6
Lesson 7
variable
coefficient
algebraic
expression
Commutative Property of Addition
Commutative Property of Multiplication
Associative Property of Addition
Associative Property of Multiplication
Identity Property of Addition
Identity Property of Multiplication
order of operations
Distributive Property
evaluate
substitution
input/output table
Topic 3
Lesson 1
Lesson 3
Lesson 9
estimate
compatible
numbers
inequality
Topic 4
Lesson 1
Lesson 2
equation
Addition Property of Equality
Subtraction Property of Equality
Multiplication Property of Equality
Division Property of Equality
inverse relationship
Topic 5
Lesson 1
Lesson 2
Lesson 3
multiple
divisible
prime number
composite number
prime factorization
greatest
common factor
Lesson 4
Lesson 5
Lesson 6
Lesson 7
fraction
numerator
denominator
equivalent fractions
simplest form
conjecture
Topic 6
Lesson 3
Lesson 4
proper fraction
improper fraction
mixed number
terminating decimal
repeating decimal
Topic 7
Lesson 1
Lesson 2
Lesson 3
like denominators
common multiple
least common multiple (LCM)
unlike denominators
least common denominator (LCD)
Topic 9
Lesson 2
reciprocals
Lesson 1
opposites
integers
absolute value
rational number
coordinate plane
x-axis
y-axis
quadrants
ordered pair
origin
Topic 10
Lesson 3
Lesson 9
Topic 11
Lesson 1
Lesson 2
point
line
ray
line segment
congruent line segments
midpoint
intersecting lines
plane
parallel lines
perpendicular lines
vertex
acute angle
right angle
obtuse angle
Lesson 3*
Lesson 4
Lesson 5
Lesson 6*
Lesson 7*
Lesson 8*
straight angle
vertical angles
congruent angles
adjacent angles
complementary angles
supplementary angles
acute triangle
right triangle
obtuse triangle
equilateral triangle
isosceles triangle
scalene triangle
trapezoid
parallelogram
rhombus
rectangle
square
circle
diameter
radius
chord
central angle
arc
sector
congruent figures
translation
reflection
glide reflection
rotation
reflection symmetry
line of symmetry
rotational symmetry
Topic 12
Lesson 1
Lesson 2
Lesson 3
Lesson 5
ratio
terms
proportion
rate
unit rate
formula
Topic 13
Lesson 6*
scale drawing
scale
Lesson 1
percent
Lesson 4
T-table
Topic 14
Topic 15
Lesson 5*
linear equation
dependent variable
independent variable
Topic 16
Lesson 1
Lesson 2
capacity
meter
gram
liter
kilocentimilli-
Lesson 1
Lesson 2
Lesson 4*
perimeter
area
circumference
Lesson 1
cone
cylinder
edge
faces
net
polyhedron
prism
pyramid
sphere
vertex
volume
Topic 17
Topic 18
Lesson 3
Topic 19
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
statistical question
data distribution outlier
mean
average
median
mode
range
frequency table
histogram
box plot
quartiles
absolute deviation
interquartile range (IQR)
mean absolute deviation
*Step-Up to Grade 7 Lessons Vocabulary