FIRST LEGO League http://www.firstlegoleague.org/ 2014 FLL WORLD CLASS Challenge Registration now open in some countries. Click on your country to learn more. What is the future of learning? FIRST® LEGO® League teams will find the answers. In the 2014 FLL WORLD CLASS℠ Challenge, over 230,000 children ages 9 to 16* from over 70 countries will redesign how we gather knowledge and skills in the 21st century. Teams will teach adults about the ways that kids need and want to learn.