In Rosa’s Big Bridge Experiment, Jessica Spanyol follows Rosa and her friends as they explore a simple but rich question: What makes a bridge work? Using materials they find at the beach, the children try different bridge ideas, notice what holds, and adjust when something is not sturdy enough. Their play becomes even more purposeful when Rosa’s dog needs help crossing from a sandbank. This book pairs well with Kodo materials that invite children to build, test, balance, revise, collaborate, and learn from what happens as they work.