Even or Odd?

Today I read two stories, If You Were an Even Number and If You Were an Odd Number.  These books follow the same story pattern...they define even/odd numbers, place numbers on a line and use pictures to show different scenarios--sporting events, animal feet, branches on a tree etc. to determine if a number is even or odd.  After some discussion about even and odd numbers I gave students 3 cards and a box of dominoes.  The object was to count the dots on one side of the domino, decide if it was an even or odd number, count the other side and decide if that number was even or odd.  If both numbers were even they would place the domino on the 'even' card, if both numbers were odd they would place it on the 'odd' card and if one number was even and one was odd they would place the domino on the 'both' card.  Once all dominoes were sorted I had students rotate to another table and check another students sort.