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Click on any standard to search for aligned resources. This data may be subject to copyright. You may download a CSV of the Mathematics Standards for Colorado if your intention constitutes fair use.

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Count to 120 (CCSS: 1.NBT.1) i. Count starting at any number less than 120. (CCSS: 1.NBT.1) ii. Within 120, read and write numerals and represent a number of objects with a written numeral. (CCSS: 1.NBT.1)

Within 120, read and write numerals and represent a number of objects with a written numeral. (CCSS: 1.NBT.1)

Represent and use the digits of a two-digit number. (CCSS: 1.NBT.2) i. Represent the digits of a two-digit number as tens and ones.1 (CCSS: 1.NBT.2) ii. Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <. (CCSS: 1.NBT.3) iii. Compare two sets of objects, including pennies, up to at least 25 using language such as 'three more or three fewer' (PFL)

Represent the digits of a two-digit number as tens and ones.1 (CCSS: 1.NBT.2)

Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <. (CCSS: 1.NBT.3)

Compare two sets of objects, including pennies, up to at least 25 using language such as 'three more or three fewer' (PFL)

Use place value and properties of operations to add and subtract. (CCSS: 1.NBT) i. Add within 100, including adding a two-digit number and a one-digit number and adding a two-digit number and a multiple of ten, using concrete models or drawings, and/or the relationship between addition and subtraction. (CCSS: 1.NBT.4) ii. Identify coins and find the value of a collection of two coins (PFL) iii. Mentally find 10 more or 10 less than any two-digit number, without counting; explain the reasoning used. (CCSS: 1.NBT.5) iv. Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. (CCSS: 1.NBT.6) v. Relate addition and subtraction strategies to a written method and explain the reasoning used. (CCSS: 1.NBT.4 and 1.NBT.6)

Add within 100, including adding a two-digit number and a one-digit number and adding a two-digit number and a multiple of ten, using concrete models or drawings, and/or the relationship between addition and subtraction. (CCSS: 1.NBT.4)

Identify coins and find the value of a collection of two coins (PFL)

Mentally find 10 more or 10 less than any two-digit number, without counting; explain the reasoning used. (CCSS: 1.NBT.5)

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. (CCSS: 1.NBT.6)

Relate addition and subtraction strategies to a written method and explain the reasoning used. (CCSS: 1.NBT.4 and 1.NBT.6)

Represent and solve problems involving addition and subtraction. (CCSS: 1.OA) i. Use addition and subtraction within 20 to solve word problems.2 (CCSS: 1.OA.1) ii. Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.3 (CCSS: 1.OA.2)

Use addition and subtraction within 20 to solve word problems.2 (CCSS: 1.OA.1)

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.3 (CCSS: 1.OA.2)

Apply properties of operations and the relationship between addition and subtraction. (CCSS: 1.OA) i. Apply properties of operations as strategies to add and subtract.4 (CCSS: 1.OA.3) ii. Relate subtraction to unknown-addend problem.5 (CCSS: 1.OA.4)

Apply properties of operations as strategies to add and subtract.4 (CCSS: 1.OA.3)

Add and subtract within 20. (CCSS: 1.OA) i. Relate counting to addition and subtraction.6 (CCSS: 1.OA.5) ii. Add and subtract within 20 using multiple strategies.7 (CCSS: 1.OA.6) iii. Demonstrate fluency for addition and subtraction within 10. (CCSS: 1.OA.6)

Add and subtract within 20 using multiple strategies.7 (CCSS: 1.OA.6)

Demonstrate fluency for addition and subtraction within 10. (CCSS: 1.OA.6)

Use addition and subtraction equations to show number relationships. (CCSS: 1.OA) i. Use the equal sign to demonstrate equality in number relationships.8 (CCSS: 1.OA.7) ii. Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.9 (CCSS: 1.OA.8)

Use the equal sign to demonstrate equality in number relationships.8 (CCSS: 1.OA.7)

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.9 (CCSS: 1.OA.8)

Represent and interpret data. (CCSS: 1.MD) i. Organize, represent, and interpret data with up to three categories. (CCSS: 1.MD.4) ii. Ask and answer questions about the total number of data points how many in each category, and how many more or less are in one category than in another. (CCSS: 1.MD.4)

Organize, represent, and interpret data with up to three categories. (CCSS: 1.MD.4)

Ask and answer questions about the total number of data points how many in each category, and how many more or less are in one category than in another. (CCSS: 1.MD.4)

Distinguish between defining attributes1 versus non-defining attributes.2 (CCSS: 1.G.1)

Build and draw shapes to possess defining attributes. (CCSS: 1.G.1)

Compose two-dimensional shapes3 or three-dimensional shapes4 to create a composite shape, and compose new shapes from the composite shape. (CCSS: 1.G.2)

Partition circles and rectangles into two and four equal shares. (CCSS: 1.G.3) i. Describe shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. (CCSS: 1.G.3) ii. Describe the whole as two of, or four of the equal shares.5 (CCSS: 1.G.3)

Describe shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. (CCSS: 1.G.3)

Describe the whole as two of, or four of the equal shares.5 (CCSS: 1.G.3)

Measure lengths indirectly and by iterating length units. (CCSS: 1.MD) i. Order three objects by length; compare the lengths of two objects indirectly by using a third object. (CCSS: 1.MD.1) ii. Express the length of an object as a whole number of length units.6 (CCSS: 1.MD.2)

Order three objects by length; compare the lengths of two objects indirectly by using a third object. (CCSS: 1.MD.1)

Express the length of an object as a whole number of length units.6 (CCSS: 1.MD.2)

Tell and write time. (CCSS: 1.MD) i. Tell and write time in hours and half-hours using analog and digital clocks. (CCSS: 1.MD.3)

Tell and write time in hours and half-hours using analog and digital clocks. (CCSS: 1.MD.3)

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