How do you build “Cool Creations?” Brick by plastic brick.

The Sequim Library, 630 N. Sequim Ave., hosts three sessions of Cool Creations Lego Building Challenge at 10 a.m., 11 a.m. and noon on Saturday, Feb. 24.

Race the clock to see how many “Cool Creations” you can build in just 45 minutes, guided by Sean Kenney’s book, “Cool Creations in 35 Pieces.”

This Lego challenge is recommended for children who are 7 years of age or older.

Children may work on the kit alone or with a friend.

Advanced registration is required. Register for a session through the “Events” calendar at www.nols.org, call 360-683-1161 or email Youth@nols.org.

All materials for this program are provided by the Washington State Library, and will remain in the Library after the event.

Lego building has been shown to help develop the ability to think in three dimensions (a precursor to physics), enhance communication and critical thinking, boost motor development, improve creativity, develop problem-solving and encourage lateral thinking.

Beyond the fun factor, for younger children the brightly colored pieces and interlocking combinations provide hours of sorting skills, patterning practice and fine-motor development — key factors in most kindergarten math curriculums.

For more information about this and other programs for youth, call the Sequim Library at 360-683-1161, send an email to Youth@nols.org or visit www.nols.org.