Formatted Contents Note: Cool Structures : Bits and Pieces Put Together -- Pyramids : Ancient Geometry -- Project 1: Build a Pyramid -- Bridges : Get Over It! -- Project 2: Build a Bridge -- Sling It : Structures in Action! -- Project 3: Build a Catapult -- Towers : Building High -- Project 4: Spaghetti Tower Challenge -- Math Terms -- Glossary -- Web Sites.