Make learning more enjoyable! Learn about the art and science of infrastructures during play time. K'NEX Education's Intro to Structures Bridges Set allows you and your children to create a variety of shapes and models of bridges. The set consists of 207 classic pieces, which include rods and connectors. The snap-fit pieces stick together securely and can be easily reassembled into other creations. Build 13 fully functioning replicas of real-world bridges, one at a time. These models demonstrate key bridge types, such as truss, arch, cantilever, beam, suspension, movable/bascule, and cable-stayed. Building instructions and guides are included in each set. K'NEX Education teacher's guides and experiment guides are aligned to national educational standards, including ITEEA, NSES, NCTM, NGSS, and Common Core. K'NEX promotes the development of STEAM (science, technology, engineering, arts, and math) capabilities by invoking a child's natural curiosity and creativity, which powers the fun of each and every K'NEX building set. Building with K'NEX puts children on a path to a fundamental understanding of STEAM subjects. Enjoy hassle-free cleanup and storage, as this building set comes with a convenient portable storage tray with a snap-on lid. K'NEX Education's Intro to Structures Bridges Set is designed to enhance imagination and creativity. Aside from being used to build 13 bridge replicas, it also allows kids to create buildings, houses, and towers. This toy is ideal for kids from grades 3 to 5, and 2 to 3 students can work on each set at one time.