• Module 4

    Place Value, Comparison, Addition and Subtraction to 40
     
    Key Common Core Standards:
     
    * Represent and solve problems using addition and subtraction
        
    * Extend the counting sequence to 40 (In first grade, we will eventually count to 120)
        
    * Understand Place Value
         * Understand that the two digits of a two-digit number represent amounts of tens and ones.
         * Compare two two-digit numbers based on meaning of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
     
    * Use place value understanding and properties of operations to add and subtract
        
        
         
     
     
     
    Key Vocabulary:
        
         Greater Than - shown by the symbol >
               Example:  10 > 4
     
         Less Than - shown by the symbol <
               Example:  4 < 10
                
         Place Value - quantity represented by a digit in a particular place within a number
               Example: the "1" in the number 17 represents a ten