Love a good day of LEGO fun, but hate stepping on them? Leave the mess at camp and let your kids explore the wonderful world of design and engineering with all kinds of LEGO blocks, large and small. It’s a challenge, too: In each class, the kids get an assignment to build, modify and test. They’ll have fun while learning. Ages 4–6. $107. 9–11 a.m. Minnetonka Community Education Center, Classroom 120, 4584 Vine Hill Road, Excelsior; 952.401.6800; minnetonkacommunityed.org.