Each group needs:

• 2 sheets of construction paper, 8.5 x 11-inches or larger; must be the same size paper for all groups
• scissors
• scotch or masking tape
• ruler

The instructor needs:

• puffed rice, an amount that is sufficient to fill the largest possible box students create from the provided one sheet of paper; such as a bag of puffed rice cereal for ~$3
• measuring cup, for the puffed rice
• chalk or white board markers, to record volumes on the classroom board
• tape (or magnets) to attach paper boxes to the classroom board