• Module 1

    Sums and Differences to 10
     
    Key Common Core Standards:
     
    * Represent and solve problems involving addition and subtraction
         
         * Use addition and subtraction within 10 to solve word problems
     
    * Understand and apply properties of operations and the relationship between addition and subtraction
     
      
         * Apply properties of operations as strategies to add and subtract
         * Understand subtraction as an unknown-addend problem
        
    * Add and Subtract within 10 (eventually within 20)
     
         * Relate counting to addition and subtraction
     
    * Work with addition and subtraction equations
     
         * Understand the meaning of the equal sign
         * Determine the unknown whole number in an addition or subtraction equation relating three whole numbers
        
        
         
     
     
     
    Key Vocabulary:
        
         Count On - students count up from one addend to the total
               Example: for 5 + 4 they would start with 5, then count 6 . . 7 . . 8 . . 9 to get the total of 9
     
         Expression - 
               Example:  2 + 1 or 5 + 5 (expressions do not have an equal sign, thus are not equations)
                
         Addend - one of the numbers being added in an addition problem
              
         Doubles - 
              Example: 3 + 3 or 4 + 4
     
         Doubles Plus 1 - 
              Example: 3 + 4 or 4 + 5
        
         Part - 
              Example: "What is the unknown part? 3 + ___ = 8 "
     
         Equation and Number Sentence - these words are used interchangeably throughout the module
     
         Number Bond - a graphic showing part / part / whole