Each group should have:

• 2 foot-long rulers which have four holes in them
• 2 fine-line markers
• 1 roll of adding machine paper (available at office supply stores)
• 1 small box approximately 6" L x 3" W x 2" H to fit the adding machine paper roll (the top of a box from bank checks works great)
• 1 medium-sized, strong rubber band
• Small strip of tag board or cardboard (about 1½" by 3")
• Cork or square eraser
• 2 pencils or a thin wood dowel that can fit through the holes in the rulers

For the class to share:

• X-acto® or utility knife
• 4-6 large, heavy books
• Masking, duct or transparent tape
• Scissors