Students have to pack Billy's backpack with HIS school supplies. However, they need to determine which items are his based upon clues about the items size. For example, Billy's blue crayon is larger than his green, but smaller than his yellow crayon. If students select the correct item, then the school supply will go into the backpack, but if they are wrong, the item will bounce out.
At the end of the lesson, there is a FREE worksheet for you to use to assess students understanding of this concept.