Little Builder Classes at The LEGO Store are guided, hands-on play sessions designed to introduce toddlers to basic building concepts. Children work with larger blocks to develop fine motor skills and spatial awareness in a supportive environment. What to Know: This event is designed for toddlers and preschoolers, making it ideal for ages two to four. It is completely free to attend, but you should arrive a few minutes early to secure a spot in the store. Park near the lower level mall entrance by Sears for the fastest walk to the storefront. This is a smart morning outing because it wraps up just as the rest of the mall opens. You can let your child play, browse the store, and grab lunch nearby before heading home for afternoon naps.