Mrs. Thackers HS Math class had to use 20 pieces of spaghetti, a yard of tape, and a yard of string to build the tallest tower that would support the weight of 1 marshmallow. They had 30 minutes to build their towers. We measured from the top of the marshmallow to the table to see which group had the tallest tower. 5th period's tallest tower was 20 inches. 7th period's tallest tower was 26 inches.