Batteries not required. The Knex Discovery Set . . . . Books The Knex Bridges Educators Guide is a comprehensive guide for all different types of bridges as well as the history of bridges and bridge design. 174 pages emphasize bridge design, structure, function and performance with regard to load, purpose, environmental factors and budgetary constraints. K'nex Book of Big Ideas contains 80 color pages with with well-done pictorial instructions for over 100 models using between and 9 and 1016 pieces.
Exploded views show challenging sections.
Also features some huge models like a 39,000 piece Knex Brooklyn Bridge, and a 514,000 piece U.S. Capitol building - 8' tall by 17.5 feet long. Many real-world features of this intriguing project underline the importance of math in life. All phases are clearly described. Sorry, We don't actually sell the actual toothpicks. Topics are introduced through class discussion and reading.