Our Class Math Calendar Board
Measurement & Data (MD)

Operations & Algebraic Thinking (OA)

Number & Operations in Base Ten (NBT)

Geometry (G)

Measure lengths
indirectly and by iterating length units
Tell and write time
Represent and
interpret data

Represent and solve
problems involving addition and subtraction
Understand and
apply properties of operations and the relationship between addition and
subtraction
Add and subtract
within 20
Work with addition
and subtraction equations

Extend the counting sequence
Understand place
value
Use place value
understanding and properties of operations to add and subtract

Reason with shapes
and their attributes

+
Addition Key
Words


Subtraction Key
Words

plus

minus

add

take away

increased by

decreased by

more

less

total of

difference of

combined, together

difference between

sum

difference

added to

taken from

count up

count back

How many?

How many more?

How many altogether?

How many less/fewer?

Sum:
Answer to an addition
problem

Difference:
Answer to a subtraction
problem

Equals =

is, are, was, were, will be
gives, yields, sold for

