MOLINE, Illinois -- It's a sport that tests agility, concentration and speed - it's called cupstacking and dozens of elementary school students in Moline, Illinois put their skills to the test at a competition.
The students have to learn different stack patterns and are tested on accuracy and timing. Cupstacking is a competitive sport in 30 countries, and its been in the Moline schools for about 15 years.
Students get 12 cups and get to perform from three stack patterns.