For over 20 years, Skills Canada—Ontario has been hosting Cardboard Boat Races, testing the students' ability to build a floating structure that will outperform all others in speed and weight challenges. Both elementary and secondary schools participate, on separate days. Teams of four are provided all the necessary materials to build a boat in just two hours. Students must bring their problem-solving, teamwork and design skills as they create a seaworthy structure out of two sheets of four-by-eight feet of corrugated cardboard and duct tape.