BUILD your own engineering creations with this 235-piece STEM building set! DESIGN new twisting, turning creations, or follow along with the included Activity Guide! MASTER engineering, critical thinking, and other STEM skills with every build! Super STEM Skills: From science and technology to engineering and math, STEM learning help kids build critical thinking and other skills they need for success in school and beyond! A Brighter Back to School, school supplies: Make this the smartest back-to-school yet with toys and tools from Learning Resource trusted by teachers and parents alike since 1984!