Planks are a loose part particularly well-suited for inspiring dramatic play during large-scale construction investigations. Children use Construction Planks to design bridges, fortresses, roads, balance beams, and encourage your young builders to think big. Strong enough to stand on and light enough to transport, we recommend presenting them with sandbags, hollow blocks, and unit blocks; or with arches and tunnels for fulcrum and lever investigations. The set is sized proportionally to complement play with traditional classroom unit blocks.