Colorado Academic Standards (CAS)
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CO.1.1.Number Sense, Properties, and Operations
Number Sense, Properties, and Operations
1.1.1. The whole number system describes place value relationships within and beyond 100 and forms the foundation for efficient algorithms. Students can:
1.1.1.a. Count to 120. (CCSS: 1.NBT.1)
1.1.1.a.i. Count starting at any number less than 120. (CCSS: 1.NBT.1)
Vocabulary Terms Counting to 999
Vocabulary Terms Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Counting to 999
Quiz, Flash Cards, Worksheet, Game & Study Guide Sequencing
1.1.1.a.ii. Within 120, read and write numerals and represent a number of objects with a written numeral. (CCSS: 1.NBT.1)
Flip Charts Hundred Counting Chart
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Place Value
Vocabulary Terms Comparing Numbers
Vocabulary Terms Counting to 999
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms Number Words
Vocabulary Terms Odd and Even
Vocabulary Terms Odd and Even
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Sequencing
Vocabulary Terms Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Comparing Numbers
Quiz, Flash Cards, Worksheet, Game & Study Guide Counting to 999
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide Number Words
Quiz, Flash Cards, Worksheet, Game & Study Guide Odd and Even
Quiz, Flash Cards, Worksheet, Game & Study Guide Odd and Even
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.1.b. Represent and use the digits of a two-digit number. (CCSS: 1.NBT.2)
1.1.1.b.i. Represent the digits of a two-digit number as tens and ones. (CCSS: 1.NBT.2)
Flip Charts Math Grade 2
Flip Charts Place Value
1.1.1.b.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)
Flip Charts Math Grade 2
Flip Charts Place Value
Vocabulary Terms Comparing Numbers
Vocabulary Terms Counting to 999
Vocabulary Terms Greater Than, Less Than
Vocabulary Terms Ordering Numbers and Objects by Size
Vocabulary Terms Sequencing
Vocabulary Terms Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Comparing Numbers
Quiz, Flash Cards, Worksheet, Game & Study Guide Counting to 999
Quiz, Flash Cards, Worksheet, Game & Study Guide Greater Than, Less Than
Quiz, Flash Cards, Worksheet, Game & Study Guide Ordering Numbers and Objects by Size
Quiz, Flash Cards, Worksheet, Game & Study Guide Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Sequencing
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.1.c. Use place value and properties of operations to add and subtract. (CCSS: 1.NBT)
1.1.1.c.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)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtraction
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.1.c.ii. Identify coins and find the value of a collection of two coins (PFL).
Flip Charts Adding Money
Flip Charts How much?
Flip Charts Math Grade 1
Flip Charts Money
Flip Charts Money
Flip Charts Time, Money & Measurement Math Readiness
Vocabulary Terms Counting Coins
Vocabulary Terms Money
Quiz, Flash Cards, Worksheet, Game & Study Guide Counting Coins
Quiz, Flash Cards, Worksheet, Game & Study Guide Money
1.1.1.c.iii. Mentally find 10 more or 10 less than any two-digit number, without counting; explain the reasoning used. (CCSS: 1.NBT.5)
Vocabulary Terms Skip Counting
Vocabulary Terms Skip Counting
Quiz, Flash Cards, Worksheet, Game & Study Guide Skip Counting
Quiz, Flash Cards, Worksheet, Game & Study Guide Skip Counting
1.1.1.c.v. Relate addition and subtraction strategies to a written method and explain the reasoning used. (CCSS: 1.NBT.4 and 1.NBT.6)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Counting 1-100
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtraction
Flip Charts Subtraction Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.2. Number relationships can be used to solve addition and subtraction problems. Students can:
1.1.2.a. Represent and solve problems involving addition and subtraction. (CCSS: 1.OA)
1.1.2.a.i. Use addition and subtraction within 20 to solve word problems. (CCSS: 1.OA.1)
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
1.1.2.b. Apply properties of operations and the relationship between addition and subtraction. (CCSS: 1.OA)
1.1.2.b.i. Apply properties of operations as strategies to add and subtract. (CCSS: 1.OA.3)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Counting 1-100
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtraction
Flip Charts Subtraction Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.2.b.ii. Relate subtraction to unknown-addend problem. (CCSS: 1.OA.4)
Vocabulary Terms Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction is not Commutative
1.1.2.c. Add and subtract within 20. (CCSS: 1.OA)
1.1.2.c.i. Relate counting to addition and subtraction. (CCSS: 1.OA.5)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Counting 1-100
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtraction
Flip Charts Subtraction Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
1.1.2.c.ii. Add and subtract within 20 using multiple strategies. (CCSS: 1.OA.6)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Counting 1-100
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtraction
Flip Charts Subtraction Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.2.c.iii. Demonstrate fluency for addition and subtraction within 10. (CCSS: 1.OA.6)
Flip Charts Adding Two-digit Numbers
Flip Charts Adding Two-digit Numbers
Flip Charts Addition Facts
Flip Charts Counting 1-100
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtracting Two-digit Numbers
Flip Charts Subtraction
Flip Charts Subtraction Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Addition Facts
Vocabulary Terms Commutative Property
Vocabulary Terms Double Digit Addition without Regrouping
Vocabulary Terms One Less, One More
Vocabulary Terms One More, One Less
Vocabulary Terms Story Problems
Vocabulary Terms Story Problems
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction Facts
Vocabulary Terms Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Addition Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Commutative Property
Quiz, Flash Cards, Worksheet, Game & Study Guide Double Digit Addition without Regrouping
Quiz, Flash Cards, Worksheet, Game & Study Guide One Less, One More
Quiz, Flash Cards, Worksheet, Game & Study Guide One More, One Less
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Story Problems
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction Facts
Quiz, Flash Cards, Worksheet, Game & Study Guide Subtraction is not Commutative
Quiz, Flash Cards, Worksheet, Game & Study Guide Using Number Line
1.1.2.d. Use addition and subtraction equations to show number relationships. (CCSS: 1.OA)
1.1.2.d.i. Use the equal sign to demonstrate equality in number relationships. (CCSS: 1.OA.7)
Flip Charts Addition
Flip Charts Number Order
Flip Charts Number Sense & Operations Math Readiness
Vocabulary Terms Symmetry
Quiz, Flash Cards, Worksheet, Game & Study Guide Symmetry
CO.1.3.Data Analysis, Statistics, and Probability
Data Analysis, Statistics, and Probability
1.3.1. Visual displays of information can used to answer questions. Students can:
1.3.1.a. Represent and interpret data. (CCSS: 1.MD)
1.3.1.a.i. Organize, represent, and interpret data with up to three categories. (CCSS: 1.MD.4)
Flip Charts Data & Graphs
Flip Charts Math Grade 2
Vocabulary Terms Graphs
Quiz, Flash Cards, Worksheet, Game & Study Guide Graphs
1.3.1.a.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)
Flip Charts Data & Graphs
Flip Charts Math Grade 2
Vocabulary Terms Graphs
Quiz, Flash Cards, Worksheet, Game & Study Guide Graphs
CO.1.4.Shape, Dimension, and Geometric Relationships
Shape, Dimension, and Geometric Relationships
1.4.1. Shapes can be described by defining attributes and created by composing and decomposing. Students can:
1.4.1.a. Distinguish between defining attributes versus non-defining attributes. (CCSS: 1.G.1)
Flip Charts Exploring Shapes Math Readiness
Flip Charts Math Grade 1
Flip Charts Plane Shapes
Vocabulary Terms Shapes
Quiz, Flash Cards, Worksheet, Game & Study Guide Shapes
1.4.1.d. Partition circles and rectangles into two and four equal shares. (CCSS: 1.G.3)
1.4.1.d.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)
Flip Charts Fractions
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Understanding Fractions
Flip Charts Understanding Fractions
Vocabulary Terms Fractions
Vocabulary Terms Fractions
Vocabulary Terms Fractions Greater Than or Less Than 1/2
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions Greater Than or Less Than 1/2
1.4.1.d.ii. Describe the whole as two of, or four of the equal shares. (CCSS: 1.G.3)
Flip Charts Fractions
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Understanding Fractions
Flip Charts Understanding Fractions
Vocabulary Terms Fractions
Vocabulary Terms Fractions
Vocabulary Terms Fractions Greater Than or Less Than 1/2
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions
Quiz, Flash Cards, Worksheet, Game & Study Guide Fractions Greater Than or Less Than 1/2
1.4.2. Measurement is used to compare and order objects and events. Students can:
1.4.2.a. Measure lengths indirectly and by iterating length units. (CCSS: 1.MD)
1.4.2.a.i. Order three objects by length; compare the lengths of two objects indirectly by using a third object. (CCSS: 1.MD.1)
Flip Charts Full & Empty
Flip Charts Long & Short
Flip Charts Positions & Opposites Math Readiness
Vocabulary Terms Comparing Objects
Quiz, Flash Cards, Worksheet, Game & Study Guide Comparing Objects
1.4.2.a.ii. Express the length of an object as a whole number of length units. (CCSS: 1.MD.2)
Flip Charts Length, Capacity, Weight & Temperature
Flip Charts Math Grade 2
Vocabulary Terms Comparing Objects
Vocabulary Terms Measurement
Vocabulary Terms Measurement
Quiz, Flash Cards, Worksheet, Game & Study Guide Comparing Objects
Quiz, Flash Cards, Worksheet, Game & Study Guide Measurement
Quiz, Flash Cards, Worksheet, Game & Study Guide Measurement
1.4.2.b. Tell and write time. (CCSS: 1.MD)
1.4.2.b.i. Tell and write time in hours and half-hours using analog and digital clocks. (CCSS: 1.MD.3)
Flip Charts All About Time
Flip Charts Hour/Half Hour
Flip Charts Math Grade 1
Flip Charts Math Grade 2
Flip Charts Telling Time
Flip Charts Time, Money & Measurement Math Readiness
Flip Charts What time of day?
Vocabulary Terms Telling Time
Vocabulary Terms Time
Quiz, Flash Cards, Worksheet, Game & Study Guide Telling Time
Quiz, Flash Cards, Worksheet, Game & Study Guide Time
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