Photos: Minnesota Regional FIRST Robotics Competition

Robots
George McIntyre, left, and Zach Ruddle, both seniors at Lakeville South High School, make some last-minute improvements to their team's robot on Thursday, March 28, 2013, before the first practice round in the Minnesota Regional FIRST Robotics Competition at the University of Minnesota. More than 120 high school teams designed robots that can throw flying discs and climb pyramids during the competition.
MPR Photo/Jennifer Simonson

This year's regional robotics competition at the University of Minnesota is so big it will take up two sports arenas. About 120 high school teams from Minnesota and surrounding states have designed robots that can throw Frisbees and climb a 10-foot-tall pyramid.