Build suspension, arch, and truss bridges. CD-ROM for enhanced learning material. Hands On Learning No more toothpicks and glue! The K"NEX Education Intro to Structures: Bridges set is designed to introduce students to the history, function, structural design, geometry and strength of bridges while providing opportunities for them to acquire skills using a hands-on, inquiry-based approach to information and concepts. The Teacher"s Guide provides the information and resources required to build your students" understanding of scientific, technical and design concepts and to channel their inquiries into active and meaningful learning experiences STEM Standards Building instructions and teacher"s guide aligned to national education standards and Common Core Mathematics included. Packaged in a strong storage tray with snap-on lid. STEM Education focuses on science, technology, engineering and mathematics concepts taught through problem-solving, discovery, exploratory learning and critical thinking. STEM Education requires students to be active participants in the learning. K"NEX models offer hands-on learning opportunities that encourage scientific inquiry, investigation and experimentation. Our inquiry-based lessons challenge students as they build, investigate, problem solve, discuss, and evaluate scientific and design principles in action. Aligned to Science, Technology, Engineering, and Math standards. Made in the USA Over the past 20 years, K"NEX has become America"s Building Toy Company with all of our bricks, rods, and connectors manufactured in Pennsylvania at The Rodon Group"s facility. K"NEX and Rodon remain proudly family owned and operated. At a time when most toys are made overseas we are committed to manufacturing as many parts in the United States as possible. You"ll be happy to know that every rod and connector included in K"NEX building sets is made in the USA. What"s in the Box? Supports 2-3 students, Grades 3-5Classic K"NEX piecesBendable and other special pieces207 pieces totalBuilding GuideTeacher"s GuideCD-ROMStorage Tub with snap-on lid