Lesson focuses on how bridges are engineered to withstand weight, while being durable,
and in some cases aesthetically pleasing. Students work in teams to design and build
their own bridge out of up to 200 popsicle sticks and glue. Bridges must have a span of at
least 14 inches and be able to hold a five pound weight (younger students) or a twenty
pound weight (older students). Students are encouraged to be frugal, and use the fewest
number of popsicle sticks while still achieving their goals. Students then evaluate the
effectiveness of their own bridge designs and those of other teams, and present their
findings to the class.