Introducing Subtraction

Yesterday we introduced the concept of 'subtraction' in math class. We explored important math vocabulary (minus, take away, equals, difference, left over) and the symbols (-, =) related to subtration.  We explored the concept that in subtraction questions you start with a WHOLE (the largest number in the equation).  Then you subtract a PART.  What remains or is left over, is the other PART. So......WHOLE - PART - PART. (unlike addition which is PART-PART-WHOLE).  See the link above to the fun subtration song video that we are singing in class!