I use this throught out the year as a homework activity, center, and part of or daily morning routine. I even used it as a assessment tool a few times. I put them in clear plastic sheets with a whiteboard marker and there was a new number on the board every morning when they came into the class.
Teacher chooses a number and student sho how that number can EXPLODE into a variety of ways:
model by drawing base 10
placing number in a place value chart