I had five teams and they did three rounds of stacking each in our competition. We even had a bonus round where they were allowed to hold up their towers! After each round, the team leaders were responsible for adding their team’s data to the board. At the end of the competition, they had to analyze the data to find the mean, median, mode, and range of their data and then of the class’ data. Finally, they had to make a double line graph to show the data. They LOVED this activity!