Each group needs

• computer, laptop or tablet
• Make a Communication Device Worksheet; one per student
• A variety of materials for students to build their devices (Note: give groups unlimited access to each, but they will not be using all materials at once.)
• yarn
• rope
• fishing line
• string
• wire
• a variety of recycled materials that are consumable
• different kinds of tape (Scotch, duct, painters)
• plastic cups
• tin cans of various sizes
• paper cups of various sizes
• plastic cups of various sizes
• toilet paper or paper towel rolls
• meter stick
• scissors
• poster paper

For the entire class to share:

• markers
• nail, hammer, and scissors for teacher
• play money (e.g., Monopoly money) (optional)