1. Make sense of problems and persevere in solving them.
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for- and express regularity in repeated reasoning.

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    Chap. 5-Subtraction of Two-Digit Numbers

    Vocabulary

    Whole - Part = Part
    Related Subtraction Facts
    Subtraction Sentence
    Related Addition and Subtraction Facts
    Count Up
    Fact Family
    Ones
    Tens
    Digit
    2-Digit Number
    Regroup
    1 Ten = 10 Ones
    Round
    Estimate
    
    Concepts
    
    Subtract Tens and Ones
    Mental Math Subtraction
    Ways to Make Numbers
    Regroup Tens as Ones: Use Models
    Regroup Tens as Ones: Model and Record
    Regroup Tens as Ones
    Mental Math: Subtract Two-Digit Numbers
    Estimate Differences
    Rewrite Two-Digit Subtraction
    Add to Check
    Subtraction Practice
    Chain Operations
    Problem Solving: Read and Write in Math: Ask a Question
    Choose the Method
    Mixed Practice
    Problem Solving Applications: Mixed Strategies
     

     

    
    
    Chapter 4

    Vocabulary
    Addition Sentence
    Ones
    Tens
    Digit
    Ten Rod
    Two digit Number
    Algorithm
    Regroup
    10 ones = 1 ten
    Estimate 
    Round

     

    Chapter 4 Concepts
    Add Tens and Ones
    Mental Math
    Regroup Ones as Tens 
    Estimate Sums
    Rewrite Two Digit Addition
    Three Addends
    Four Addends
    Problem Solving Strategies

  
  Chapter 3

  Vocabulary
  Pictograph
  Bar Graph
  Data
  Symbol
  Key
  Survey
  Range
  Median
  Mode
  Predict
  Line Plot

  
  Concepts
  Pictographs
  Bar Graphs
  Surveys
  Range, Mode, and Median
  Understanding Data
  Comparing Data
  Line Plots
  Problem Solving: Use a Graph
  Problem Solving Applications:Mixed Strategies

  ---

  Chapter 2-Place Value to 100

  Vocabulary
  2-Digit Number
  Place Value Chart
  Expanded Form
  Is Less Than (<)
  Is Greater Than (>)
  Is Equal To (=)
  Estimate
  Round
  Halfway
  Even Numbers
  Odd Numbers
  Count by 3s
  Count by 4s
  Ones Unit
  Tens Rod
  Hundred Flat
  Value
  Just Before
  Just After
  Between

  
  Concepts
  Tens and Ones
  Place Value
  Number Words 0-100
  Place Value of 2-Digit Numbers
  Expanded Form
  Compare Numbers
  Order Using a Number Line
  Order Using Models
  Estimate
  Round to the Nearest Ten
  Model Even and Odd
  Even and Odd Numbers
  Counting Patterns

• Chapter 1 - Adding & Subtracting to Twenty

   

  • Chapter 1 Vocabulary
    add
    plus (+)
    equals (=)
    addend
    sum
    addition sentence
    make 10
    doubles +1
    doubles -1
    subtract
    minus (-)
    difference
    subtraction sentence
    count up
    fact family
    missing addend
    part + part = whole
    whole - part = part
    addend + addend = sum
    doubles fact
    related addition facts
    related subtraction facts
    fact family
  •  
  • Chapter 1 Concepts
    
    Addition Concepts
    Related Addition Facts
    Count On to Add
    Extend Facts to 20
    Make 10 to Add
    Doubles Facts
    Doubles +1; Doubles -1
    Three Addends
    Four Addends
    Subtraction Concepts
    Add or Subtract to Compare
    Count Back to Subtract
    Related Subtraction Facts
    Relate Addition and Subtraction
    Think Addition to Subtract
    Use Addition to Check
    Count Up to Subtract
    Make 10 to Subtract
    Writing a Number Sentence
    Fact Families
    Missing Addends
    Use a Bar Model
    Fact Patterns
    Problem Solving Strategy: Choose the Operation
    Problem Solving Strategy: Two-Step Problems
    Problem-Solving Applications: Mixed Strategies