Build nine real world models that demonstrate Science, Technology, Engineering, Mathematics, (STEM)and History concepts. Eight of the models can be built two at a time. Set includes 1,355 Rods, Connectors, and New K'NEX Bricks to support 6 - 8 students working in teams of 3 - 4. Models include: Eiffel Tower, Seattle Space Needle, Flying Buttress System, Windmill, Crane, Big Ben, Arc de Triomphe, the CN Tower and the first iron bridge. Comprehensive, interdisciplinary Teacher's Guide including student readers and career explorations. Comes packaged in a strong storage case with movable dividers and transparent snap-on lid. Appropriate for 5th - 8th grade classrooms. Ages 10 and up.