Young architects learn about spatial reasoning and building in three dimensions as they construct one realistic house after another! Children just follow the prompts on our activity cards—slotting together walls, floors and roofs to create 10 different houses even professionals would be proud of. With every house they complete, kids develop essential STEM skills and spatial awareness. You get 10 activity cards, 41 plastic building pieces and a guide. Floor panels measure 4 1/4" wide.