TECHCARD, Build-it Kit, Set of, 30 models

Explore strong shapes and structures through a set of models incorporating linkages, levers and winders. Investigate why things are the shape they are and how different materials are useful for different tasks. Explore how materials are shaped to make them more useful and learn how to build strong structures.

The 10 core models include: Lever Hoist, Mechanical Puppet, Snapping Snake, Flapping Bat, Tower Crane, Draw Bridge, Marble Run, Balance Scales, Lever Crane, Triangulated Bridge.