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 plastic 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. 41 building pieces and a guide (missing some of the guide pages). Floor panels measure 4 1⁄4" wide. Item # TT223 Additional Information Develops skills in early STEM concepts and spatial reasoning.