• 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