K12worX
K-8 Math
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Grade 1 Math
Grade 1 Math
Common Core aligned
21 standards · 1 with slides
I
Operations and Algebraic Thinking
Represent and solve problems involving addition and subtraction
1.OA.A.1
Use addition and subtraction within 20 to solve word problems
1.OA.A.2
Solve word problems that call for addition of three whole numbers
coming soon
Understand and apply properties of operations and the relationship between addition and subtraction
1.OA.B.3
Apply properties of operations as strategies to add and subtract
coming soon
1.OA.B.4
Understand subtraction as an unknown-addend problem
coming soon
Add and subtract within 20
1.OA.C.5
Relate counting to addition and subtraction
coming soon
1.OA.C.6
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10
coming soon
Work with addition and subtraction equations
1.OA.D.7
Understand the meaning of the equal sign
coming soon
1.OA.D.8
Determine the unknown whole number in an addition or subtraction equation
coming soon
II
Number and Operations in Base Ten
Extend the counting sequence
1.NBT.A.1
Count to 120, starting at any number less than 120
coming soon
Understand place value
1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones
coming soon
1.NBT.B.3
Compare two two-digit numbers based on meanings of the tens and ones digits
coming soon
Use place value understanding and properties of operations to add and subtract
1.NBT.C.4
Add within 100, including adding a two-digit number and a one-digit number
coming soon
1.NBT.C.5
Given a two-digit number, mentally find 10 more or 10 less than the number
coming soon
1.NBT.C.6
Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90
coming soon
III
Measurement and Data
Measure lengths indirectly and by iterating length units
1.MD.A.1
Order three objects by length; compare lengths using a third object
coming soon
1.MD.A.2
Express the length of an object as a whole number of length units
coming soon
Tell and write time
1.MD.B.3
Tell and write time in hours and half-hours using analog and digital clocks
coming soon
Represent and interpret data
1.MD.C.4
Organize, represent, and interpret data with up to three categories
coming soon
IV
Geometry
Reason with shapes and their attributes
1.G.A.1
Distinguish between defining attributes versus non-defining attributes
coming soon
1.G.A.2
Compose two-dimensional shapes or three-dimensional shapes to create a composite shape
coming soon
1.G.A.3
Partition circles and rectangles into two and four equal shares
coming soon