FIRST LEGO League (FLL) is the result of collaboration between FIRST and the LEGO Company. FLL teams are international, a parallel to FIRST Robotics teams except for students ages 9-14. FLL give students opportunities for hands-on experience with robots with a focus on creativity, teamwork, problem solving, and analytical thinking. Like other FIRST programs, the aim of FLL is to build students' positive perception of math and science.

Started in 1998, FIRST LEGO League now boast more than 90,000 participants in 45 countries around the world.

Students and their LEGO-bot at The San Diego LEGO Challenge hosted by Team 812

Starting in September, FLL reveals a new challenge to teams around the world. Teams then have eight weeks to design and build a LEGO robot that is capable of completing various tasks in the challenge... all in autonomous programming. Teams also research and create a presentation about a problem the world faces today in "Research Assignment". Past FLL challenges have included "NanoQuest 2006" where students explored the world of nanotechnology, a new scientific frontier. The 2005 challenge was "Ocean Odyssey" that prompted students to look at our vital oceans and the technologies scientists use to explore them. Weeks of the students' hardwork payoff at friendly sports-like FLL competitions at local, regional, or national level. Preuss robotics annually hold The San Diego LEGO Challenge competition.