For Part 1, the class needs:

• 2 sheets of paper that are two different colors, on which to copy Making the Connection Worksheets A and C doubled-sided on one piece, and copy Worksheets A and D double-sided on the different color piece
• scissors

For Part 2, the class needs:

• 2 sheets of paper that are two different colors, on which to copy Making the Connection Worksheets B and C doubled-sided on one piece, and copy Worksheets B and D double-sided on the different color piece
• masking tape, to mark a line on the floor, ~20-30 meters
• yarn or string, ~85-125-meters (the amount needed will vary depending on your class size and how many student cell towers you assign; this estimate is based on needing 6-10 10-meter lengths for cell tower circles, a 4-meter length for the traveling student, and no more than a 20-meter length for the stationery landline)
• scissors
• paper and pencils, for student sketching
• (optional to print out) Part 2 Cell Phone Activity Setup Sketch